LUCA Forms, Letters, User Guides, and other Items

Local Update of Census Addresses (LUCA) Program

11. LUCA_UserGuide_OPT2_LG

LUCA Forms, Letters, User Guides, and other Items

OMB: 0607-0795

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TABLE OF CONTENTS
Chapter 1
Introduction to the 2010 Decennial Census Local Update of Census Addresses
(LUCA) Program
1
The 2010 Decennial Census Local Update of Census Addresses (LUCA) Program............. 1
Background ............................................................................................................................. 2
The Census Address List Improvement Act......................................................................... 2
The Census Bureau’s Master Address File (MAF)............................................................... 2
The Topologically Integrated Geographic Encoding and Referencing (TIGER®) Database 2
LUCA Program Responsibilities.............................................................................................. 3
Census Bureau’s LUCA Program Responsibilities .............................................................. 3
Participant’s LUCA Program Responsibilities ...................................................................... 3
Training and Technical Support .............................................................................................. 5
Schedule ................................................................................................................................. 5
Respondent Burden ................................................................................................................ 6

Chapter 2
Before You Begin Your Review

Introduction ............................................................................................................................. 7
What is a Housing Unit? ......................................................................................................... 7
What are Group Quarters? ..................................................................................................... 8
Unacceptable Types of Housing Units and Group Quarters .................................................. 8
Census Bureau Addresses ..................................................................................................... 9
Residential and Nonresidential Addresses .......................................................................... 9
Address Formats .................................................................................................................. 9
City-Style Address Format ............................................................................................... 9
Noncity-Style Address Format ......................................................................................... 9
Census Tract......................................................................................................................... 10
Census Block ........................................................................................................................ 10
What is Geocoding?.............................................................................................................. 11
Strategies for Reviewing the Census Bureau’s Address List ............................................... 11
Local Address Sources ......................................................................................................... 12

Chapter 3
The LUCA Program’s Computer-Readable Address List and Address Count List
13
Introduction ........................................................................................................................... 13
Protecting Census Bureau Address Information................................................................... 13
The File Names..................................................................................................................... 15
Address List File Names .................................................................................................... 16
Address Count List File Names.......................................................................................... 17
Software Requirements ........................................................................................................ 17
Opening the Files .................................................................................................................. 17
The File Formats ................................................................................................................... 18
Address List........................................................................................................................ 18
Computer-Readable Address List File Record Layout .................................................. 21
Example – Pipe-Delimited Address List File – City-style Address................................. 22
Example – Pipe-Delimited Address List File – Noncity-style Address........................... 23
Address Count List ............................................................................................................. 24

Example – Address Count List File Record Layout ....................................................... 25
Example – Pipe-Delimited Address Count List File ....................................................... 26

Chapter 4
The Census Bureau’s Predefined Computer-Readable Local Address List File
27
Format
The Predefined Computer-Readable Address List File Format............................................ 27
The Address List Template Record Layout File.................................................................... 28

Chapter 5
The Census Bureau Maps

Introduction ........................................................................................................................... 31
Reading a Census Bureau Paper Map .............................................................................. 31
The Map Sheet to Block Number Relationship List .............................................................. 34
Examples of Feature Updates .............................................................................................. 35
Adding a new street and associated address ranges on the paper map ...................... 35
Correcting a street name on the paper map.................................................................. 37
Correcting the location of a street on the paper map .................................................... 37
Deleting a street on the paper map ............................................................................... 38
Shapefiles ............................................................................................................................. 39
Submitting Shapefile Feature Information ............................................................................ 40
The Census Bureau’s Shapefile Coordinate System and Projection Information......... 40
General File Setup Guidelines....................................................................................... 40
Changing Our Coordinate System to Match Yours ....................................................... 41
Feature Information ....................................................................................................... 41
Updating the Feature Shapefile..................................................................................... 41
Edges Layer Data Dictionary......................................................................................... 42
Census Feature Classification MTFCC to CFCC Crosswalk ........................................ 44
Change Type Codes for Feature Corrections ............................................................... 45
Examples............................................................................................................................ 46
1. Adding a Feature to the Edges Layer....................................................................... 46
2. Correcting a Feature Name ...................................................................................... 46
3. Procedure for changing the MTFCC of an existing feature...................................... 46
4. Deleting a feature ..................................................................................................... 46
5. Moving a street ......................................................................................................... 47
Metadata ............................................................................................................................... 49
Metadata Requirements ................................................................................................ 49
Digital File Submission.......................................................................................................... 50
Boundary and Annexation Survey (BAS).............................................................................. 51

Chapter 6
Submitting Your LUCA Program Updates

Submitting LUCA Materials................................................................................................... 52
Preparing the Shapefiles for Submission ........................................................................... 52
Sorting the Census Bureau’s Paper Maps for Submission ................................................ 53
Shipping Your LUCA Materials ............................................................................................. 53

Chapter 7
Returning or Destroying Census Bureau Title 13, U.S.C. Materials

Program Conclusion ............................................................................................................. 55

Returning Census Bureau Title 13, U.S.C. Materials......................................................... 55
Destroying Census Bureau Title 13, U.S.C. Materials ....................................................... 56

APPENDICES
Appendix A
Confidentiality and Security Guidelines............................................................................ 57
Appendix B
The Map Legend .............................................................................................................. 63
Appendix C
Physical Location Description and Street Type Abbreviation Examples.......................... 67
Appendix D
Unit Designation Abbreviation Examples ......................................................................... 68
Appendix E
Confidentiality Agreement Form ....................................................................................... 69
Appendix F
Inventory Form ................................................................................................................. 70
Appendix G
Special Disclosure Notice................................................................................................. 71
Appendix H
Return or Destruction of Title 13, U.S.C. Materials Form................................................. 72

Glossary

Index

TABLE OF FIGURES
Figure 3.1: Entity Identification Codes.......................................................................................... 16
Figure 3.2: Computer-Readable Address List File Record Layout............................................... 21
Figure 3.3: Pipe-Delimited LUCA Program Address List File – City-style Address ..................... 22
Figure 3.4: Pipe-Delimited LUCA Program Address List File – Noncity-style Address................ 23
Figure 3.5: Address Count List File Record Layout...................................................................... 25
Figure 3.6: Address Count List File “Total Row” Layout............................................................... 25
Figure 3.7: Pipe-Delimited Address Count List File...................................................................... 26
Figure 4.1: Census Bureau’s Predefined File Format for Local Address List Submission........... 27
Figure 5.1: Example of a Census Bureau Paper Map.................................................................. 33
Figure 5.2: The Map Sheet to Block Number Relationship List ................................................... 35
Figure 5.3: Adding a New Street on the Paper Map..................................................................... 36
Figure 5.4: Correcting a Street Name on the Paper Map............................................................. 37
Figure 5.5: Correcting the Location of a Street on the Paper Map............................................... 38
Figure 5.6: Deleting Streets on the Paper Map ............................................................................ 39
Figure 5.7: Edges Layer Data Dictionary ..................................................................................... 42
Figure 5.8: Census Feature Classification MTFCC to CFCC Crosswalk ..................................... 44
Figure 5.9: Change Type Codes for Feature Corrections ............................................................ 45
Figure 5.10: Example Attribute Table Updates ............................................................................. 48
Figure 5.11: Digital Road Correction Example .............................................................................. 49

iii

CHAPTER 1
INTRODUCTION TO THE 2010 DECENNIAL CENSUS LOCAL UPDATE OF
CENSUS ADDRESSES (LUCA) PROGRAM
The 2010 Decennial Census Local Update of Census Addresses (LUCA) Program
Background
The Census Address List Improvement Act
The Census Bureau’s Master Address File (MAF)
The Topologically Integrated Geographic Encoding and Referencing (TIGER®)
Database
LUCA Program Responsibilities
Census Bureau’s LUCA Program Responsibilities
Participant’s LUCA Program Responsibilities
Training and Technical Support
Schedule
Respondent Burden

The 2010 Decennial Census Local Update of Census Addresses (LUCA)
Program

The Local Update of Census Addresses (LUCA) Program is an integral part of
the 2010 Census activities that utilizes the expertise of tribal, state, and local
governments to improve the accuracy and completeness of the address list
used to take the census.
The U.S. Census Bureau invited the highest elected official of your
jurisdiction to participate in this program. Your jurisdiction selected Option
2, Title 13 Local Address List Submission. This option allows you to:
•

Review the Census Bureau’s Address List including city-style 1 and
noncity-style 2 residential addresses and address count list for your
jurisdiction. These lists are for reference purposes only.

•

Submit your local address list file of single or multiunit structure or
group quarters 3 city-style addresses only, in a predefined Census
Bureau computer-readable format. The Census Bureau will only
accept local address files (city-style addresses only) in the predefined
format as explained in Chapter 4.

A city-style address consists of a house number and street name; for example, 201 Main Street. The address may or
may not be used for the delivery of mail and may include apartment numbers/designations or similar identifiers. See
Chapter 2 for a complete definition.
2
A noncity-style address does not use a house number and street name. This includes rural route and box number
addresses and highway contract route addresses, etc., which may include a box number, post office boxes and drawers,
and general delivery.
3
A group quarters is a place where people live or stay that is normally owned or managed by an entity or organization
providing housing and/or services for the residents. See Chapter 2 for a complete definition.

Option 2–Title 13 Local Address List Submission

Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

•

Identify any additions, deletions, or corrections to boundaries, roads,
or other physical features on the Census Bureau paper maps or submit
an updated version of the digital map file (shapefile) provided by the
Census Bureau.

Background
The Census Address List Improvement Act

The Census Address List Improvement Act of 1994 (Public Law 103-430)
strengthened the Census Bureau’s partnership capabilities with tribal, state,
and local governments by expanding the methods the Census Bureau could use
to exchange address information. Designed to improve the accuracy of the
Census Bureau’s address list, the Act authorized the Census Bureau to provide
individual addresses to officials of tribal, state, and local governments who
agreed to conditions of confidentiality. Census 2000 marked the first
decennial census for which the Census Bureau could provide its address list
for review to governments that signed the required confidentiality agreement.
(See Appendix A for the terms of the LUCA Program Confidentiality and
Security Guidelines.)
The Census Bureau’s Master Address File (MAF)

In preparation for Census 2000, the Census Bureau created the Master Address
File (MAF) by merging the 1990 Address Control File 4 with the latest version
of the U.S. Postal Service’s (USPS) Delivery Sequence File 5 (DSF). The
MAF is a nationwide database of all addresses used to support many of the
Census Bureau’s operations. Besides containing mailing addresses and ZIP
Codes, an address record in the MAF also contains geographic information
about the location of addresses. In areas where there are noncity-style
addresses (e.g., rural route or post office box number), the address record may
contain additional information such as a location description.
The Topologically Integrated Geographic Encoding and Referencing
(TIGER®) Database

Address records in the MAF are linked to feature segments in the
Topologically Integrated Geographic Encoding and Referencing (TIGER®)
database. The TIGER® database includes the geographic coordinates and
names of all streets, water features, and other linear features, and boundaries

The 1990 residential address list used to label questionnaires, control the mail response check-in operation, and
determine the nonresponse follow-up workload.
5
A computerized file containing all delivery point addresses serviced by the U.S. Postal Service (USPS). The USPS
updates the DSF continuously as its letter carriers identify addresses for new delivery points or changes in the status of
existing addresses.

Option 2–Title 13 Local Address List Submission

Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

for all jurisdictions and statistical areas (census tracts6, census blocks 7, etc.)
used to tabulate decennial census data. The TIGER® database also includes
address ranges 8 along streets that have city-style addresses and the hierarchy
of census geographic area codes from the state level down to individual census
blocks (www.census.gov/geo/www/geodiagram.html). By linking address
records in the MAF to the TIGER® database, the Census Bureau is able to
identify street segments along which an individual address exists and
determine the geographic code that applies to that address.
The Census Bureau’s Geography Division regularly updates the MAF/TIGER
database from various sources. In addition to the USPS DSF, other sources of
updates include current household surveys, special censuses, and local sources.
LUCA Program Responsibilities
Census Bureau’s LUCA Program Responsibilities

The Census Bureau’s LUCA program responsibilities include:
•

Provide training to LUCA program participants.

•

Provide the necessary materials to participants.

•

Provide technical assistance.

•

Process updates submitted by LUCA participants.

•

Conduct a 100% Address Canvassing (field check) operation. The
Census Bureau will visit each census block within your jurisdiction
during this operation to update our address list and validate your
LUCA submissions.

•

Provide feedback materials for your review.

•

Provide assistance to participants to resolve any address discrepancies.

•

Provide for a formal appeal of disputed addresses by an independent
federal agency outside of the Census Bureau and the Department of
Commerce.

Participant’s LUCA Program Responsibilities

As a participant in the LUCA program, your responsibilities include:

A census tract is a small, relatively permanent statistical division of a county or statistically equivalent entity,
delineated for the purpose of presenting Census Bureau statistical data.
7
A census block is a geographic area bounded by visible features, such as streets, roads, streams, and railroad tracks,
and invisible features, such as the boundaries of governmental units and other legal entities. Census blocks are the
smallest area for which the Census Bureau collects and tabulates statistical information.
8
Address ranges are the lowest and highest address numbers used to identify structures along each side of a street
segment. Usually one side of the street has even address numbers and the other side has odd address numbers.

Option 2–Title 13 Local Address List Submission

Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

•

Select your LUCA liaison and reviewers. (The Census Bureau
suggests that individuals in your jurisdiction involved in zoning
enforcement not work on this program since this may create a conflict
of interest.)

•

Sign and return the Registration Form.

•

All liaisons, reviewers, and anyone with access to Title 13 materials
must read, understand, and agree to abide by the Census Bureau’s
Confidentiality and Security Guidelines (See Appendix A for the terms
of the LUCA Program Confidentiality and Security Guidelines).

•

All liaisons, reviewers, and anyone with access to Title 13, United
States Code (U.S.C.) materials must sign and return to the Census
Bureau the Confidentiality Agreement Form.

•

Complete and return the Self-Assessment Form.

•

Complete and return the Participation Option/Product Preference form.

•

Ensure that everyone working on the LUCA program understands the
procedures for participating in the program and Census Bureau
terminology and concepts.

•

Keep Census Bureau addresses, and maps showing structure points 9,
(housing units and group quarters locations) confidential and ensure
their use only for census purposes. (Although structure points are not
displayed on the LUCA materials during the LUCA review phase, they
will be provided for the Feedback phase of the program.)

•

Ensure the receipt of all required materials for the LUCA program
review.

•

Prepare a strategy to conduct the review of LUCA materials.

•

Within 120 calendar days of receiving your LUCA materials, complete
your address list review and submit your updated materials to the
Census Bureau.

•

Review the Census Bureau’s detailed feedback materials.

•

Appeal address discrepancies to the LUCA Appeals Office within 30
calendar days of receipt of feedback materials.

•

After the appeals process is complete, return to the Census Bureau or
destroy all Title 13 materials.

•

The LUCA liaison must verify the return or destruction of Title 13
materials by signing and returning to the Census Bureau the Return or
Destruction of Title 13, U.S.C. Materials form.

A structure point is a coordinate location that represents the location of one or more housing units and/or group
quarters. Structure points are protected by Title 13. See Appendix A, Confidentiality and Security Guidelines.

Option 2–Title 13 Local Address List Submission

Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

•

All LUCA program reviewers must sign and date the Return or
Destruction of Title 13, U.S.C. Materials form.

Training and Technical Support

Census Bureau staff will conduct LUCA training workshops beginning in
August of 2007. These training workshops will provide you with hands-on
experience in using the 2010 Decennial Census LUCA Program materials. In
addition, computer-based training (CBT) is available on the LUCA Program
CBT CD-ROM and the LUCA Web site at
.
Should you need additional information, please contact your Census
Bureau Regional Office toll free at 1-866-511-LUCA (5822) or for
technical assistance about computer applications including the
MAF/TIGER Partnership Software (MTPS), please call the Help Desk
toll free at 1-866-919-LUCA (5822).
Schedule

January–February 2007

LUCA advance notification letters and
information materials were mailed to highest
elected officials and other contacts in eligible,
active, functioning governments.

March–June 2007

LUCA Promotional Workshops were
conducted.

August 2007

LUCA invitation letters and registration
materials were mailed to the highest elected
officials and a courtesy copy to other contacts in
eligible, active, functioning governments.

August 2007–January 2008

Invited governments register for LUCA and the
Census Bureau ships LUCA review materials to
each participating government.

August 2007

LUCA Training Workshops begin.

September 2007–March 2008

LUCA Option 2 participants review the address
list and address count list and submit their local
address list file to their Census Bureau’s
Regional Office within 120 calendar days from
the receipt of materials.

Option 2–Title 13 Local Address List Submission

Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

October 2007–October 2008

Census Bureau reviews participant’s LUCA
submissions and updates the MAF/TIGER
database.

November 2008–June 2009

Census Bureau prepares for and conducts an
Address Canvassing Operation using GPSequipped hand held computers.

August 2009–October 2009

Census Bureau provides feedback materials to
participants showing how we processed each
participant’s LUCA submissions.

September 2009–December 2009

Participants review feedback materials and have
the opportunity to appeal the results to the
LUCA Appeals Office.

September 2009–January 2010

LUCA Appeals Office reviews and adjudicates
appeals.

Respondent Burden

The Census Bureau estimates that it will take between 105 and 1,575 hours to
complete the LUCA review depending on the number of addresses and rate of
address growth and change. This includes the time needed to read the
invitation materials and complete the registration forms, and upon receipt of
the LUCA materials, to read the instructions, assemble and review the LUCA
materials, and provide updates.
Please send comments regarding this burden estimate or any other aspect of
this collection of information, including suggestions for reducing this burden
to:
Paperwork Project 0607-0795
4600 Silver Hill Road, Room 3K138
Washington, DC 20233.
Or you may e-mail comments to ; use "Paperwork
Project 0607-0795" as the subject. Please include a copy of your message
addressed to .
Under the paperwork Reduction Act, the Census Bureau cannot ask you to
respond to a collection of information unless it displays a currently valid
Office of Management and Budget (OMB) control number. The OMB
number is found in the upper right corner of each LUCA form.

Option 2–Title 13 Local Address List Submission

CHAPTER 2
BEFORE YOU BEGIN YOUR REVIEW
Introduction
What is a Housing Unit?
What are Group Quarters?
Unacceptable Types of Housing Units and Group Quarters
Census Bureau Addresses
Census Tract
Census Block
What is Geocoding?
Strategies for Reviewing the Census Bureau’s Address List
Local Address Sources

Introduction

Chapter 2 explains some of the terms and concepts used by the Census Bureau
and recommended strategies for your LUCA review. Refer to the Glossary or
visit the Census Bureau’s Web site at for additional terms
and definitions.
What is a Housing Unit?

A single-family house, townhouse, mobile home, trailer, apartment, group of
rooms, or a single room occupied as a separate living quarters or, if vacant,
intended for occupancy as a separate living quarters. A separate living
quarters is one in which one or more occupants (or intended occupants, if
vacant) live separate from any other individual(s) in the building and have
direct access to the living quarters without going through another living
quarters, such as from outside the building or through a common hall.
The following types of housing units are acceptable and should be included on
the address list you submit to the Census Bureau:
•
•
•
•

Houses, including townhouses, condominiums, and apartments.
Living quarters within an otherwise nonresidential structure such as an
apartment within a church, school, or business.
Mobile homes or trailers occupied as separate living quarters, or if
vacant, intended for occupancy as separate living quarters.
Any housing units under construction that will be habitable (closed to
the elements with final roof, windows, and doors) on Census Day,
April 1, 2010.

Option 2–Title 13 Local Address List Submission

Chapter 2: Before You Begin Your Review

What are Group Quarters?

A place where people live or stay, in a group living arrangement, that is
owned or managed by an entity or organization providing housing and/or
services for the residents. This is not a typical household-type living
arrangement. These services may include custodial or medical care as well
as other types of assistance, and residency is commonly restricted to those
receiving these services. People living in group quarters are usually not
related to each other.
The following types of group quarters are acceptable and should be included
on the address list you submit to the Census Bureau:
•
•
•
•
•
•
•
•
•
•

Correctional facilities.
Juvenile facilities.
Nursing homes.
Hospitals with long-term care facilities.
College or university dormitories, fraternities, sororities.
Dormitories for workers.
Religious group quarters.
Shelters.
Group homes.
Any group quarters under construction that will be habitable (closed to
the elements with final roof, windows, and doors) on Census Day,
April 1, 2010.

Note: Housing units and group quarters can exist within the same structure.
Unacceptable Types of Housing Units and Group Quarters

Exclude the following unacceptable types of housing units and group quarters
addresses from your address list. Housing units and group quarters that are:
•
•
•
•
•
•

Condemned or scheduled for demolition.
Being converted or remodeled for nonresidential purposes.
Used solely for nonresidential storage.
Used solely as offices or businesses in which no one is living.
Used solely for ceremonial purposes.
Under construction and will not be habitable (closed to the elements
with final roof, windows, and doors) on Census Day, April 1, 2010.

Option 2–Title 13 Local Address List Submission

Chapter 2: Before You Begin Your Review

Census Bureau Addresses
Residential and Nonresidential Addresses

The Census Bureau divides all addresses in two use types, residential and
nonresidential. Residential addresses are addresses of housing units and/or
group quarters where one or more persons could live. Nonresidential
addresses are addresses of a structure or unit within a structure that do not
serve as a residence, such as commercial establishments, schools, government
offices, and churches.
Some structures can contain both residential and nonresidential units, even
though they have a single address such as an apartment over a store or a home
with an office.
Address Formats
City-Style Address Format

The Census Bureau classifies housing unit and group quarters addresses
that have a house number and street name address, for example, 212 Elm
Street or 137 Clark Ct., Apt. 316, as city-style addresses. In some
instances, the house number may also include an alpha character such as
35A or W9254. These addresses are used for mailing or to provide
location for emergency services, such as police, fire, and rescue (E-911
addresses).
City-style addresses for housing units in multiunit structures, such as
apartment buildings, contain a unit designator, for example, Apt 101 or
Suite D or a location designator such as “rear” or “basement” (See
Appendix D, Unit Designation Abbreviations). The Census Bureau and
the U.S.P.S. treat these unit designators as part of the housing unit address,
and they are included in each affected census address record.
Noncity-Style Address Format

The Census Bureau classifies addresses that do not include a house
number and/or a street name as noncity-style addresses. Noncity-style
addresses do not include a complete house number and street name
address. The majority of noncity-style addresses are located in the more
sparsely settled areas of the United States; however, they may exist in
small- or medium-sized towns as well. Frequently used noncity-style
mailing addresses include:
•
•
•
•

General delivery.
Rural route and box number.
Highway contract route and box number.
Post Office box only delivery.

Option 2–Title 13 Local Address List Submission

Chapter 2: Before You Begin Your Review

Noncity-style addresses often do not follow any numeric sequence, and
may not be associated with the name of the street or highway on which
they are located. For this reason, the Census Bureau uses different
methods to compile the list of addresses for inclusion into the address list,
such as location descriptions (BRICK HSE w/ATTACHED GARAGE ON
RIGHT), structure points (geographic coordinates), and census geographic
codes (state code, county code, census tract number, census block
number).
Census Tract

Census tracts are small, relatively permanent statistical subdivisions of a
county or statistically equivalent entity, delineated for presenting Census
Bureau statistical data.
The proposed criteria for census tracts for the 2010 Census is that they contain
a minimum of 1,200 people with an optimal population of 4,000.
Census tract boundaries are delineated with the intention of being stable over
many decades, so they generally follow relatively permanent visible features.
However, they may follow governmental unit boundaries and other nonvisible features in some instances. Census tract boundaries never cross state
or county (or statistically equivalent entity) boundaries.
Each census tract is uniquely numbered within a county and contains
numerous census blocks. Census tract numbers contain up to a 4-digit
number followed by a decimal point and a 2-digit number for suffixed tracts,
e.g., 1234.01. For census tracts without a suffix, the number will contain a
period with zero fill, e.g., 4567.00. Leading zeros are not shown on Census
Bureau materials.
Note: When using the Census Bureau shapefiles to geocode an address to a
Census Tract number, use the Tractlabel attribute field on the curtracts
(current tracts) shapefile.
Census Block

A census block is an area bounded by visible features such as streets, roads,
streams, and railroad tracks and nonvisible features such as the boundaries of
governmental units and other legal entities. A block is the smallest
geographic area for which the Census Bureau collects and tabulates statistical
data.
Census blocks may look like a city block or may be large and irregularly
shaped, depending upon features. The boundary of a state or a county is
always a block boundary.

Option 2–Title 13 Local Address List Submission

Chapter 2: Before You Begin Your Review

Census blocks are numbered within census tracts and are unique to the census
tract to which they belong. Census block numbers consist of 4-digits, and
may include a single alpha character suffix reflecting a boundary change or
added feature (e.g. 3001A and 3001B).
Note: The 2010 Decennial Census LUCA Program addresses are coded to
current census block/geography.
What is Geocoding?

In order to process your address submissions, the Census Bureau requires the
inclusion of census geographic code information. This link to census
geography is referred to as geocoding. Geocoding places an individual
address in its correct geographic location, which includes the correct state,
county, census tract, and census block codes.
Because the Census Bureau counts people where they live, census geographic
code information or geocodes support the systematic collection of data that
allows Census enumerators to locate an address. They are also important in
allocating data from questionnaire responses to the correct location. You
must include census geographic code information for the Census Bureau to
process your address submissions. The Census Bureau will not accept
addresses without census geographic codes (geocodes) including the state,
county, census tract, and census block codes.
Note: When using the Census Bureau shapefiles to geocode an address to a
Census Tract number, use the Tractlabel attribute field on the curtracts
(current tracts) shapefile.
You can find these census geographic codes on your LUCA materials.
Strategies for Reviewing the Census Bureau’s Address List

You must decide for yourself how to conduct the LUCA program review.
Consider your available time, the information you have readily available, and
the staff and computer resources you have. If resources are limited, the
Census Bureau recommends focusing on areas where addresses are more
likely to be missed or incorrect. For example:
•
•
•
•
•
•

Areas of new housing construction.
E-911 address conversion areas.
Areas that have changed from single-family homes to multi-family
homes and vice versa.
Warehouses that have been converted to residential lofts.
New mobile home parks or new scattered mobile homes.
Apartment buildings with irregular or missing numbering schemes for
the individual units.
Option 2–Title 13 Local Address List Submission

Chapter 2: Before You Begin Your Review

•
•

Recently added territory.
Addresses near jurisdictional boundaries.

Local Address Sources

There are many possible sources of local address information. Some of these
sources may not match the Census Bureau’s Address List exactly, but they are
a good indication of where change is taking place and can help you identify
addresses that you may need to add to your address list. The following list
provides suggestions for local address source materials:
•

•
•
•
•
•
•
•
•

New housing construction or building permits include units that are
under construction only if final roof, doors, and windows will be in
place on Census Day, April 1, 2010.
E-911 address files.
Housing occupancy permits.
Planning or zoning records.
Local utility records.
Drivers’ license files.
Annexation records.
Assessment or taxation files.
Voter registration files.

Option 2–Title 13 Local Address List Submission

CHAPTER 3
THE LUCA PROGRAM’S COMPUTER-READABLE ADDRESS LIST AND
ADDRESS COUNT LIST
Introduction
Protecting Census Bureau Address Information
The File Names
Software Requirements
Opening the Files
The File Formats

Introduction

The Census Bureau’s Address List and Address Count List files for your
jurisdiction are included on your CD-ROM. This chapter discusses how you
must protect the Census Bureau’s computer-readable address information and
explains the:
•
•
•

File names and formats.
Software requirements.
How to open the files.

Protecting Census Bureau Address Information

The most efficient method to review and match your local address list to the
Census Bureau’s Address List is to copy the address file onto a computer hard
drive or a network server in a useable format. You must first ensure the
protection of the Census Bureau’s Title 13, U.S.C. address information
including your Census Bureau computer-readable address file, all address list
paper copies, and maps (including copies) containing structure points.
(Structure points will be displayed on the address list and maps, where
applicable, for the Feedback phase of the program.) For detailed information
see Appendix A, Confidentiality and Security Guidelines.
The LUCA liaison must restrict access to confidential Census address
information to only those individuals who have signed the Confidentiality
Agreement. This includes all reviewers and anyone with access to Title 13
materials (See Appendix A for the terms of the Confidentiality and Security
Guidelines). If you need to add additional reviewers during your LUCA
review, a blank Confidentiality Agreement Form is included in Appendix B.
Be sure additional reviewers have read and understand the Confidentiality and
Security Guidelines, Appendix A, before signing and returning the
Confidentiality Agreement Form to the Census Bureau.
Operating systems, programs, applications, and data related to the review of
Census Bureau addresses must be accessible only to LUCA program liaisons
Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

and reviewers. The automated data processing (ADP) system should restrict
the read, write, delete, and execute functions applicable to the Census
Bureau’s address information.
The ADP system must use log-on routines that require a user-ID and password
that conform to the following guidelines:
•

Assign a unique user-ID and password for each LUCA program
liaison and reviewer.

•

Passwords must consist of at least eight (8) nonblank characters
consisting of at least one alphabet letter and either one number or
one special character ($,*, &). No more than six consecutive
characters (AAAAAA) may appear in the password, and then only
once.

•

Reject passwords that are the same as the user-ID or used within
the last 6 months.

•

Encrypt passwords.

•

Disable passwords after three bad attempts.

•

Do not display passwords on terminals or printers.

•

Change passwords every 90 days (more frequent change is
optional) or immediately, if compromised.

•

On new accounts, change the assigned password to a unique
password the first time users log on.

•

The ADP system must display a warning log-on feature.
Computer screens must display a warning that states:
**WARNING*WARNING*WARNING**
YOU HAVE ACCESSED A COMPUTER SYSTEM CONTAINING
UNITED STATES GOVERNMENT INFORMATION. USE OF
THIS COMPUTER WITHOUT AUTHORIZATION OR FOR
PURPOSES FOR WHICH AUTHORIZATION HAS NOT BEEN
EXTENDED IS A VIOLATION OF FEDERAL LAW AND CAN
BE PUNISHED BY FINE OR IMPRISONMENT (Public Law 99474). ALL USE MAY BE INTERCEPTED, MONITORED,
RECORDED, COPIED, AUDITED, INSPECTED AND
DISCLOSED TO AUTHORIZED LAW ENFORCEMENT
OFFICIALS. REPORT SUSPECTED VIOLATIONS TO YOUR
AGENCY SECURITY OFFICER. USE OF THIS SYSTEM
INDICATES YOU CONSENT TO THIS WARNING. LOG OFF
IMMEDIATELY IF YOU DO NOT AGREE TO THE
CONDITIONS OF THIS WARNING.
**WARNING*WARNING*WARNING**

•

If you place Census Bureau address information on a shared
computer system, construct electronic security profiles to allow

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

only the LUCA liaison and reviewers access to the Census
Bureau’s address information. Test your security to ensure that
only the LUCA liaison and reviewers are permitted access to the
Census Bureau’s address information.
•

Lock all rooms containing computers and all associated media
during non-work hours.

•

Do not leave computers with Census Bureau address information
unattended during work hours. Log-off the computer or lock the
room whenever you leave.

•

Label any computer diskettes, CD-ROMs, DVDs, tapes, cartridges
or other computer storage media containing Census Bureau address
information with the following:
“This document contains information the release of which is
prohibited by Title 13 U.S.C. and is for Bureau of the Census
official use only.”

•

If backup is necessary, do not send the tapes, cartridges, or disks
off-site. Store them in a secured area. Do not mix, store, or
back-up LUCA data with other data.

•

Clear magnetic media (tapes, disks, hard drives) containing
Census Bureau address information before reuse. To clear
magnetic media, overwrite all Title 13 data three times at a
minimum using a commercial disk utility program or degauss
using a commercial degausser.

•

Program any software you develop for displaying the Census
Bureau addresses to label each affected page of a printout
containing Census Bureau address information with the following:
“This document contains information, the release of which is
prohibited by Title 13 U.S.C. and is for Bureau of the Census
official use only.”

The File Names

The address list (AL) file contains all of the residential addresses currently
recorded by the Census Bureau for your jurisdiction. The address count list
(ACL) file contains the residential address counts for each census block
within your jurisdiction. The name of each of the files is:
1. Address List–LUCA_AL_XXyyyyyyyyyy.txt
2. Address Count List–LUCA_ACL_XXyyyyyyyyyy.txt

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Where:
XX = 2 character, alpha entity type:
ST–state
CO–county
PL–place
MC–minor civil division (MCD)
yyyyyyyyyy = variable length, numeric entity ID code.
The numeric portion of the entity identification code is of variable
length, depending on the type of entity:
•
•
•
•

State:
2 digits
County:
5 digits
Place:
7 digits
Minor Civil Division (MCD): 10 digits

Figure 3.1: Entity Identification Codes
Entity

Entity Identification Code

State
County
Place
Minor Civil Division
(MCD)

ST (2 alpha) + (2 numeric)
CO (2 alpha) + State (2 numeric) + County (3 numeric)
PL (2 alpha) + State (2 numeric) + FIPS Place (5 numeric)
MC(2 alpha) + State (2 numeric) + County (3 numeric) +
FIPS MCD (5 numeric)

Total
Characters
4
7
9
12

Examples:
Address List File Names

4-character state file name–New York:
LUCA_AL_ST36.txt, where “ST” is state and “36” is the state
code for New York.
7-character county file name–Erie County, New York:
LUCA_AL_CO36029.txt, where “CO” is county, “36” is the state
code for New York and “029” is the county code for Erie County.
9-character place file name–Lake Zurich, Illinois:
LUCA_AL_PL1731155.txt, where “PL” is place, “17”, is the state
code for Illinois, and “31155” is the FIPS place code for Lake
Zurich.
12-character minor civil division–My Township, Indiana County,
Pennsylvania:

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

LUCA_AL_MC4206398555.txt, where “MC” is minor civil
division, in this instance, a township; “42” is the state code for
Pennsylvania; “063” is the county code for Indiana County; and
“98555”, the minor civil division code for My Township.
Address Count List File Names

One example of an address count list file name is for a 9-character
place – Mitchell, Wyoming:
LUCA_ACL_PL5645788.txt, where “PL” is place, “56” is the
state code for Wyoming, and “45788” is the Census place code for
Mitchell.
Software Requirements

The files you receive are pipe-delimited ( | ) ASCII text files, meaning they
can be viewed and read as letters and numbers with a text editor. All
spreadsheet and database programs can read and understand these text files.
Many commercial spreadsheet and database programs can open the LUCA
files. Use spreadsheet programs such as Microsoft Excel or Lotus 123 to
open, view, and edit small files. For larger files, use a database program such
as Corel Paradox, QuattroPro, Microsoft Access, or dBase 10.
Note: Some computer programs that can open and view pipe-delimited text
files cannot save an edited file in the correct format. Make sure your program
has the ability to save or export a file with pipe-delimited fields. Call the Help
Desk toll free at 1-866-919-5822 if you need assistance or more information.
Opening the Files

Refer to the readme.txt file for instructions on opening the encrypted selfextracting address list. A case-sensitive password is required to open the file.
The Census Bureau will mail the password to you, separate from your LUCA
materials.
•

The Census Bureau recommends that you make a copy of each of the
files and place them on the hard drive of a computer that is password
protected. This will preserve the original files should you need to look
at an original record or require another original copy of the file.

•

To help keep your work organized, create a new directory or new
folder on your hard drive. Copy the files from the CD-ROM into that
directory or folder.

The Census Bureau does not endorse or recommend the use of any specific software to view its files. The program
names included here are only examples of programs that are able to read computer-readable files.

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

•

When you open the text files with your application, some spreadsheets
and databases will prompt you to supply some information about the
file. Be prepared to provide the application program with the
following:

Fields are delimited.
Delimiter is a pipe symbol ( | )
Text qualifier is none.

All field types are text.

c
c

•

It is critical that you define all field types as “text” including numeric
fields such as census tract number, census block number, ZIP Code,
and so forth.

•

Follow the record layout in Figure 3.2 to name and define the sizes of
your fields.

•

If you need assistance or more information, call the Help Desk toll free
at 1-866-919-5822.

The File Formats
Address List

The Census Bureau’s Address List contains all of the residential (city-style
and noncity-style) addresses known to the Census Bureau within your
jurisdiction. It also contains census geographic codes (state, county,
census tract, census block) that indicate the location of each address.
Each address record in the address list file is a maximum of 462 characters
and contains 26 fields of information. The character length of each record
may vary. The first row, or header row, of the address list file displays the
field names for each data column in the file.
Each address record contains the following fields:
1. Entity ID Code–unique identification number (maximum

2.
3.

character length is 12 characters) assigned by the Census Bureau to
each entity. This field is prepopulated.
Line Number–sequential number for each address record in the
file. This field is prepopulated.
MAFID–unique control number (maximum character length is 9
characters) assigned to each MAF address. This field is
prepopulated.
Action Code–blank field.
State Code–2-digit current state code for your jurisdiction. This
field is prepopulated.

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

6. County Code–3-digit current county code for your jurisdiction.
This field is prepopulated.
7. Census Tract Number–Census tract numbers contain up to a 4digit number followed by a decimal point and a 2-digit number for
suffixed tracts, e.g., 1234.01. For census tracts without a suffix,
the number will contain a period with zero fill, e.g., 4567.00. This
field is prepopulated.
Note: When using the Census Bureau shapefiles to geocode an
address to a Census Tract number, use the Tractlabel attribute
field on the curtracts (current tracts) shapefile.
8. Census Block Number–Census block numbers contain a 4-digit
number plus one alpha character, if applicable, e.g. 3001A. This
field is prepopulated.
9. Group Quarters Flag–displays a “Y” for addresses that are
considered group quarters, such as nursing homes or dormitories.
This field is prepopulated, where applicable.
10. House Number–housing unit or group quarters assigned house
number, which can contain numbers, letters, hyphens, or other
characters, e.g., 2718, 1002-3. This field is prepopulated.
11. Street Name Prefix Qualifier–examples include, EXT, ALT,
BUS, OLD, such as ALT Rt 30 or OLD Warren Rd. This field is
prepopulated, where applicable.
12. Street Name Prefix Direction–examples include, N, W, SE, such
as N Elm St or SE Chestnut Dr. This field is prepopulated, where
applicable.
13. Street Prefix Type–examples include, HWY, RT, US, such as
HWY 154 or RT 222. This field is prepopulated, where
applicable.
14. Street Name–full street or road name such as APPLE
BLOSSOM or 9th. This field is prepopulated, where applicable.
Note: Census blocks within your jurisdiction that contain no
addresses known to the Census Bureau will contain the following
statement in the Street Name field:
“NO KNOWN ADDRESSES IN THIS BLOCK”
15. Street Name Suffix Type–examples include, ST, CT, AVE, DR,
such as Marley ST or Winterberry DR. This field is prepopulated,
where applicable.
16. Street Name Suffix Direction–examples include, N, W, SE, such
as Waverly Dr S. This field is prepopulated, where applicable.

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

17. Street Name Suffix Qualifier–examples include, EXT, ALT,
BUS, such as 6th St EXT. This field is prepopulated, where
applicable.
18. Location Description or GQ–description of a living quarters
(e.g., Red Brick Ranch w/White Shutters) or name of group
quarters (e.g. Dobbs Hall). This field is prepopulated, where
applicable.
19. Apartment/Unit Number–within structure descriptor or identifier.
This column may contain apartment unit numbers such as APT 5
or location designator such as 1st FL FRNT. (See Appendix D,
Unit Designation Abbreviation Examples.) This field is
prepopulated, where applicable.
20. City-Style Mailing ZIP Code–5-digit ZIP Code for city-style
mailing addresses. This field is prepopulated, where applicable.
21. Noncity-Style Mail Delivery Address–identifies noncity-style
mail deliver address such as rural route and box number, post
office box number, etc. This field is prepopulated, where
applicable.
22. Noncity-Style Mailing ZIP Code–5-digit ZIP Code for noncitystyle mailing addresses. This field is prepopulated, where
applicable.
23. Structure Point–4-digit number plus one alpha character assigned
by the Census Bureau to a structure that contains a housing unit or
a group quarters address. This field will be blank for the review
phase of the LUCA program but will be provided for the Feedback
phase of the program.
24. Structure Latitude–This field will be blank for the Review phase
of the LUCA program but will be provided for the Feedback phase
of the program.
25. Structure Longitude–This field will be blank for the Review
phase of the LUCA program but will be provided for the Feedback
phase of the program.
26. City-Style Address Flag–contains a “Y” for city-style addresses
and an “N” for noncity-style addresses. This field is prepopulated,
where applicable.
Note: This field will be blank if “NO KNOWN ADDRESSES IN
THIS BLOCK” appears in the Street Name field.
More information is included in the table on the next page.

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Computer-Readable Address List File Record Layout
Figure 3.2: Computer-Readable Address List File Record Layout
Maximum
Character
Length

Field Name

Entity ID Code

7
9
1
2
3

Line Number
MAFID
Action Code
State Code
County Code

Census Tract Number

Census Block Number

1
35
3
2
14
100
14
2
3

Group Quarters Flag
House Number
Street Name Prefix Qualifier
Street Name Prefix Direction
Street Name Prefix Type
Street Name
Street Name Suffix Type
Street Name Suffix Direction
Street Name Suffix Qualifier

100

Location Description or GQ
Name

Apartment/Unit Number

City-Style Mailing ZIP Code
Noncity-Style Mail Delivery
Address
Noncity-Style Mailing ZIP
Code

50
5
5

Structure Point

11
12

Structure Latitude
Structure Longitude

City-Style Address Flag

Description/Notes

Unique identification number assigned by the Census Bureau
to each entity
Sequential number for each address record in the file
Unique control number assigned to each MAF address
Blank field
2-digit Current State Code
3-digit Current County Code
Up to 4-digit Census Tract Number, plus 2-digit number suffix,
if applicable, includes a period for suffixed tracts. If no suffix,
includes period and zero fill
4-digit Current Census Block Number, plus one alpha character
suffix, if applicable
Displays a ‘Y’ if the unit is a group quarters
Housing unit’s or group quarters’ assigned house number
e.g., EXT, ALT, BUS, OLD
e.g., N, W, SE
e.g., HWY, RT, US
Full street or road name
e.g., ST, CT, AVE, DR
e.g., N,W, SE
e.g. EXT, ALT, BUS
Description of living quarters (Red Brick Ranch w/White
Shutters) or name of group quarters (Dobbs Hall-University of
Dobbs)
Within structure descriptor or identifier, such as APT 5 or 1st
FL FRNT
5-digit ZIP Code for city-style mailing addresses
Rural route and box number, post office box number, etc.
5-digit ZIP Code for noncity-style mailing address
4-digit number plus one alpha assigned by the Census Bureau
to structures (RR, PO Box #, General Delivery, etc.)
Structure Latitude
Structure Longitude
Displays “Y” if city-style address, an “N” if noncity-style
address

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Example – Pipe-Delimited Address List File – City-style Address

The following is an example of how the information may appear in the
address list file before importing the file using your software program. The
example is a city-style address, 101 Main Street, Mytown, PA 15888.
Note that the “Y” in field 26 indicates that this is a city-style address.
PL4291059|107|123456789| |42|134|7654.01|2345| |101| | | |MAIN|ST| | | | |15888| | | | | |Y
Figure 3.3 displays the data in the appropriate fields.
Figure 3.3: Pipe-Delimited LUCA Program Address List File – City-style Address
Field
Number

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

Field Name

Entity ID Code
Line Number
MAFID
Action Code
State Code
County Code
Census Tract Number
Census Block Number
Group Quarters Flag
House Number
Street Name Prefix Qualifier
Street Name Prefix Direction
Street Name Prefix Type
Street Name
Street Name Suffix Type
Street Name Suffix Direction
Street Name Suffix Qualifier
Location Description or GQ Name
Apartment/Unit Number
City-Style Mailing ZIP Code
Noncity-Style Mail Delivery Address
Noncity-Style Mailing ZIP Code
Structure Point
Structure Latitude
Structure Longitude
City-Style Address Flag

Example

PL4291059
107
123456789
Blank
42
134
7654.01
2345
Blank
101
Blank
Blank
Blank
MAIN
ST
Blank
Blank
Blank
Blank
15888
Blank
Blank
Blank
Blank
Blank
Y

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Example – Pipe-Delimited Address List File – Noncity-style Address

The following is an example of how the information may appear in the
address list file before importing the file using your software program. The
example is a noncity-style address, Box 223, Scott Level Road, Myhome,
Ohio 45555. Note that the information includes a description in the location
description field:
2-STORY BRICK W/ATTACHED GARAGE ON LEFT
Also note that the “N” in field 26 indicates that this is a noncity-style address.
PL3942868|678|234567891| |39|074|2345.00|5432| | | | | |SCOTT LEVEL|ROAD| | | 2STORY BRICK W/ATTACHED GARAGE ON LEFT| | |BOX 223|45555| | | |N
Figure 3.4 displays the data in the appropriate fields.
Figure 3.4: Pipe-Delimited LUCA Program Address List File – Noncity-style Address
Field
Number

Field Name

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

19
20
21
22
23
24
25
26

Apartment/Unit Number
City-Style Mailing ZIP Code
Noncity-Style Mail Delivery Address
Noncity-Style Mailing ZIP Code
Structure Point
Structure Latitude
Structure Longitude
City-Style Address Flag

Example

PL3942868
678
234567891
Blank
39
074
2345.00
5432
Blank
Blank
Blank
Blank
Blank
SCOTT LEVEL
ROAD
Blank
Blank
2-STORY BRICK W/ATTACHED
GARAGE ON LEFT
Blank
Blank
BOX 223
45555
Blank
Blank
Blank
N

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Address Count List

The address count list contains the number of housing unit and group
quarters addresses on the address list for each census block within your
jurisdiction. Use the address count list to identify inconsistencies between
the Census Bureau’s housing unit and/or group quarters address counts
and your jurisdiction’s housing unit and/or group quarters address counts.
Each block record in the address count list file is a maximum of 57
characters and contains nine (9) fields of information. The character
length of each record may vary. The first row, or header row, of the
address count list file displays the field names for each data column in the
file. See Figure 3.5 for the address count list file record layout.
1. Entity ID Code–unique identification number (maximum
character length is 12 characters) assigned by the Census Bureau to
each entity. This field is prepopulated.
2. State Code–2-digit current state code for your jurisdiction. This
field is prepopulated.
3. County Code–3-digit current county code for your jurisdiction.
This field is prepopulated.
4. Census Tract Number–Contains up to a 4-digit number followed
by a decimal point and a 2-digit number for suffixed tracts, e.g.,
1234.01. For census tracts without a suffix, the number will
contain a period with zero fill, e.g., 4567.00. This field is
prepopulated.
5. Census Block Number–Contains a 4-digit number plus one alpha
character, if applicable, e.g. 3001A. This field is prepopulated.
6. Census Count of Housing Unit Addresses–Census Bureau’s
most recent count of housing unit addresses within your
jurisdiction. This field is prepopulated.
7. Local Count of Housing Unit Addresses–blank field.
8. Census Count of Group Quarters Addresses–Census Bureau’s
most recent count of group quarters addresses within your
jurisdiction. This field is prepopulated.
9. Local Count of Group Quarters Addresses–blank field.

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Example – Address Count List File Record Layout
Figure 3.5: Address Count List File Record Layout
Maximum
Character
Length

Field Name

Entity ID Code

2
3

State Code
County Code

Census Tract Number

Census Block Number

7
7
7
7

Census Count of Housing
Unit Addresses
Local Count of Housing
Unit Addresses
Census Count of Group
Quarters Addresses
Local Count of Group
Quarters Addresses

Description/Notes

Unique identification number assigned by the Census Bureau to
each entity
2-digit State Code
3-digit County Code
Up to 4-digit Census Tract Number, plus 2-digit number suffix,
if applicable, includes a period for suffixed tracts. If no suffix,
includes period and zero fill
4-digit Current Census Block Number, plus one alpha character
suffix, if applicable
Census Bureau’s most recent count of housing unit addresses
within your jurisdiction
Blank field
Census Bureau’s most recent count of group quarters addresses
within your jurisdiction
Blank field

The last row records the total number of Census Blocks, Census Bureau
Housing Unit Addresses, and Census Bureau Group Quarters Addresses
on the address count list. See Figure 3.6 for the “Total Row” Layout.
Figure 3.6: Address Count List File “Total Row” Layout
Maximum
Character
Length

7
5
7
7
7
7

Field Name

Description/Notes

Census Tract Number
Census Block Number
Census Count of Housing
Unit Addresses
Local Count of Housing Unit
Addresses
Census Count of Group
Quarters Addresses
Local Count of Group
Quarters Addresses

The word “Total” appears in this column
Total number of Census Blocks on the Address Count List
Total number of Census Bureau Housing Unit Addresses on the
Address Count List
Blank
Total number of Census Bureau Group Quarters Addresses on
the Address Count List
Blank

Option 2–Title 13 Local Address List Submission

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Example – Pipe-Delimited Address Count List File

Figure 3.7 is an example of how the information may appear in the address
count list file before importing the file using your software program. This
example is for a place, entity ID code PL1622233, in the state of Idaho,
state code 16, place code 22233, and county code 089. There are 765
housing unit addresses and three (3) group quarters addresses in Census
Tract 6789.01, Census Block 5432.
PL1622233|16|089|6789.01|5432|765| |3|
Figure 3.7: Pipe-Delimited Address Count List File

Address
Count
Record

Field Name

PL1622233
16
089
6789.01
5432
765
Blank
3
Blank

Entity ID Code
State Code
County Code
Census Tract Number
Census Block Number
Census Count of Housing Unit Addresses
Local Count of Housing Unit Addresses
Census Count of Group Quarters Addresses
Local Count of Group Quarters Addresses

Option 2–Title 13 Local Address List Submission

CHAPTER 4
THE CENSUS BUREAU’S PREDEFINED COMPUTER-READABLE LOCAL
ADDRESS LIST FILE FORMAT
The Predefined Computer-Readable Format
The Address List Template Record Layout File

The Predefined Computer-Readable Address List File Format

You must submit your local address file containing residential city-style
addresses only, in the predefined format as shown in Figure 4.1. The Census
Bureau will only accept and process address files submitted in this format.
Noncity-style addresses will not be accepted or processed.
The predefined file format contains 17 fields of information with a maximum
of 361 characters for each address record.
Figure 4.1: Census Bureau’s Predefined File Format for Local Address List Submission
Field
Number

Maximum
Character
Length

Entity ID Code

2
3

State Code
County Code

Census Tract Number

Census Block Number

Group Quarters Flag

House Number

8
9
10
11
12
13
14

3
2
14
100
14
2
3

Street Name Prefix Qualifier
Street Name Prefix Direction
Street Name Prefix Type
Street Name
Street Name Suffix Type
Street Name Suffix Direction
Street Name Suffix Qualifier

100

Group Quarters Name

Apartment/Unit Number

City-style Mailing ZIP Code

Field Name

Description/Notes

Unique number assigned by the Census Bureau to
each entity
2-digit Current State Code
3-digit Current County Code
Up to 4-digit Census Tract Number, plus 2-digit
number suffix, if applicable, includes a period for
suffixed tracts. If no suffix, includes period and zero
fill, e.g. 5432.00
4-digit Current Census Block Number, plus one alpha
character suffix, if applicable
Display a ‘Y’ if the unit is a group quarters
Housing unit’s or group quarters’ assigned house
number
e.g., EXT, ALT, BUS, OLD
e.g., N, W, SE
e.g., HWY, RT, US
Full street or road name
e.g., ST, CT, AVE, DR
e.g., N,W, SE
e.g. EXT, ALT, BUS
Name of group quarters (Dobbs Hall-University of
Dobbs)
Within structure descriptor or identifier, such as APT
5 or 1st FL FRNT
5-digit ZIP Code for city-style mailing addresses

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Chapter 4: The Census Bureau’s Predefined Local Address File Format

The Address List Template Record Layout File

An address list template record layout is included on your CD-ROM. If
you choose, you may use this template to import your local address file for
submission. The name of this file is:
AddressListTemplate.txt
•

Create a new directory or new folder on your hard drive. Copy
the file from the CD-ROM into that directory or folder.

•

When you open the text file with your application program,
provide the application with the following:
o Fields are delimited.
o Delimiter is pipe. ( | )
o Text qualifier is none.
o All field types are text.

•

Define all field types as “text.”

•

Be sure that the required address information is in the
appropriate field as listed below for each address record. (Your
Entity ID can be found on your LUCA materials.)
Note: All address records must contain census geographic
codes including the state code, county code, census tract
number, and census block number. The Census Bureau will
not accept addresses without census geographic codes.
1. Entity ID Code
2. State Code
3. County Code
4. Census Tract Number
Note: When using the Census Bureau shapefiles to
geocode an address to a Census Tract number, use the
Tractlabel attribute field on the curtracts (current tracts)
shapefile.
5. Census Block Number
6. Group Quarters Flag, if applicable:
a. Enter a “Y” in the Group Quarters Flag field
(field 6) for a group quarters address
b. Add the name of the group quarters in the
Group Quarters Name field

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Chapter 4: The Census Bureau’s Predefined Local Address File Format

Note: If you enter a “Y” in the Group Quarters
Flag field, you must provide a group quarters name
in the Group Quarters Name field. The Census
Bureau will not process an identified group quarters
address record without a group quarters name.
7. House Number
8. Street Name Prefix Qualifier
9. Street Name Prefix Direction
10. Street Name Prefix Type
11. Street Name
12. Street Name Suffix Type
13. Street Name Suffix Direction
14. Street Name Suffix Qualifier
15. Group Quarters Name, if applicable:
•

Be sure that the Group Quarters Flag field
displays a “Y.” The Census Bureau will not
process an identified group quarters address
record without a group quarters name.

16. Apartment/Unit Number, if applicable:
•

If you have multiunit structures (apartments,
condominiums, etc.) listed in your address file
or need to add these addresses, use the
following guidelines for identifying individual
units:
a. Enter the unit designation (e.g., APT 5,
UNIT 103) in the Apartment/Unit
Number field, if known.
b. If the apartment/unit designators are
unknown, but you know the number of
units at the multiunit structure, enter
“*#”in the Apartment/Unit Number
field for each unit added.
The “*” character will alert the Census
Bureau that the actual unit identifiers are
unknown and that we need to obtain
further information during our field
check of the address. The “#” is the
sequential number, i.e., 1,2,3,4, etc.
For example, the new multiunit structure
located at 505 Wells Blvd, contains 20

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Chapter 4: The Census Bureau’s Predefined Local Address File Format

units. You don’t know the actual
individual unit numbers or designators,
but you know there are 20 units:
i. Create 20 records with the
correct census geographic codes
(i.e., state code, county code,
census tract number, census
block number) and the street
address, 505 Wells Blvd.
ii. For each unit added at 505 Wells
Blvd, enter in sequence, the
appropriate “*#” in the
Apartment/Unit Number field.
For example, for the first unit
added at 505 Wells Blvd, enter
“*1” in the Apartment/Unit
Number field; for the second
unit record added, enter “*2” in
the Apartment/Unit Number
field, and so on, until you get to
the twentieth unit record, where
you enter “*20” in the
Apartment/Unit Number field.
17. City-style Mailing ZIP Code
•

Save your address list file as a pipe-delimited, ASCII text file.
(If you need further instruction on saving a pipe-delimited,
ASCII text file, please call the Help Desk toll free at
1-866-919-5822.)

•

Name the file containing your local address list
XXyyyyyyyyyy_LUAL.txt (XXyyyyyyyyyy is your entity
identification code found on your LUCA materials).

See Chapter 6 for instructions on submitting your address list file to the
Census Bureau.

Option 2–Title 13 Local Address List Submission

CHAPTER 5
THE CENSUS BUREAU MAPS
Introduction
Reading a Census Bureau Paper Map
The Map Sheet to Block Number Relationship List
Examples of Feature Updates
Figure 5.3: Adding a New Street on the Paper Map
Figure 5.4: Correcting a Street Name on the Paper Map
Figure 5.5: Correcting the Location of a Street on the Paper Map
Figure 5.6: Deleting Streets on the Paper Map
Shapefiles
Submitting Shapefile Feature Information
Metadata
Digital File Submission
Boundary and Annexation Survey

Introduction

The Census Bureau provides you with one set of paper maps or shapefiles as a
reference for locating and geocoding individual addresses, and for updating
and correcting your jurisdiction’s features and boundaries. If you requested to
receive paper maps, you also receive a Map Sheet to Block Number
Relationship List that identifies the map sheet(s) on which each census block
is located. See Figure 5.2, The Map Sheet to Block Number Relationship List.
Reading a Census Bureau Paper Map

There are three types of paper map sheets:
1. Index Sheets
2. Parent Sheets
3. Inset Sheets
Index Sheets–for reference (if more than one map sheet)
•

Covers the entire extent of your jurisdiction.

•

Divided into numbered grids.

•

Used with jurisdictions containing more than one parent
sheet.

•

Each numbered grid area corresponds to area covered by a
parent sheet.

•

Index sheets are for reference; please do not make updates
to the index maps because the updates are harder to
incorporate into our database due to the smaller scale.

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Chapter 5: The Census Bureau Maps

Parent Sheets–for map updates
•

Detailed view of a section of your jurisdiction.

•

Corresponds to a grid and grid number on the index sheet.

•

Shows detail for features and geographic areas.

•

Used for map updates.

Inset Sheets – for map updates to congested areas
•

Shows the detail of congested areas on parent sheets.

•

Corresponds to a notation on a parent sheet.

•

Shows detail for features and geographic areas.

•

Use these maps to make updates for congested areas only.

The Census Bureau paper map shows some of the same information
found on a typical road map, such as streets and roads, water features,
and legal boundaries. However, the Census Bureau map displays this
information using symbols unique to the Census Bureau.
The map displays the following information:
•
•
•
•
•
•
•
•
•
•

Streets.
Census block numbers.
Street names.
Railroads.
Census tract boundaries.
Entity name and FIPS Entity Code.
Water features.
Census tract numbers.
Census block boundaries.
Entity boundary.

Refer to Figure 5.1 on the next page for an example of a Census
Bureau paper map.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.1: Example of a Census Bureau Paper Map

Census tract
boundaries
Street
Entity name
and FIPS
Entity Code

Census
block
numbers

Water features
Street
names
Census tract
numbers

Railroads

Census block
boundaries

Entity
boundary

Information contained in the map border:
•

The key to adjacent areas, if your jurisdiction has multiple map
sheets.

•

Signature box for the Boundary and Annexation Survey (BAS)
Official. (Use the signature box for the Boundary and
Annexation Survey (BAS) Official only if you are submitting
boundary updates.)

•

Entity identification information.

•

Bar code.

•

Scale.

•

North arrow.

•

MAF/TIGER Accuracy Improvement Project (MTAIP) credit
for counties that have undergone the MTAIP process:

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

The MTAIP project acquired geographic information
system (GIS) files, aerial photography, and global
positioning system (GPS) data from various sources
nationwide to update the TIGER® database.

One of the primary goals of the project was to develop a
highly accurate geographic database of the United States.
The Census Bureau focused on improving the accuracy of
street feature coordinates to provide base information
suitable for use with GPS-equipped hand held devices that
would facilitate the gathering of accurate location and
census information for all living quarters and workplaces.

The symbols on the map legend include:
•

Boundaries.

•

Transportation.

•

Other Features.

•

Landmarks.

•

Footnotes and Notes.

See Appendix B for a detailed description of the map legend.
The Map Sheet to Block Number Relationship List

The Map Sheet to Block Number Relationship List is provided for use with
paper maps. The list identifies the map sheet or sheets on which each census
block is located and is sorted by census tract number and census block number
in ascending order as shown in Figure 5.2 on the next page.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.2: The Map Sheet to Block Number Relationship List
Map Sheet to Block Number Relationship List
D-1699

2010 Census Local Update of Census Addresses Program
Map Sheet to Block Number Relationship List
ST/CO: 14/015
Listing for: DARLINGTON COUNTY
Current
Census
Block #
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
2025
2026
2027
2028
2029
2030
2031
2032
2033
3001
3002
3003

Census
Tract
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01
49.01

Map# (s)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Date:
Page:

CO14015
Census
Tract
49.01
49.01
49.01
49.01
49.02
49.02
49.02
49.02
49.02
49.02
49.02
49.02
49.02

Current
Census
Block #
3004
3005
3006
3007
2010B
2011
2012
2013
3024
3025
3037
3038
3039

Map# (s)
1
1
1
1
1
1
1
1,2
1,2
2
2
2
2

Census
Tract

07/29/2007
1 of 1

Current
Census
Block #

Map# (s)

Examples of Feature Updates
Adding a new street and associated address ranges 11 on the paper
map

During your review, you may find addresses missing from the Census
Bureau’s Address List that are on streets that are partially or entirely
missing from the maps.
For example, Spring Street is a new street with newly constructed
housing units in Census Tract 2623.00, Census Block 3001. The
11

Address ranges are the lowest and highest address numbers used to identify structures along each side of a street
segment. Usually one side of the street has even address numbers and the other side has odd address numbers.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

address ranges for this street are 101 through 109 on the east side of
the street and 100 through 108 on the west side.
Figure 5.3: Adding a New Street on the Paper Map

1. Using a purple pencil, draw the location of the new street on the
map.
2. Print the street name, Spring St.
3. Print the address ranges for each side of the new street.
4. Print the address breaks 12 where Spring St intersects Coolspring St
(703–705) and Searight Ave (406– 408).
5. Be sure that your address list matches map corrections.

Address breaks are the city-style addresses on each side of a boundary or at an intersection of a street with another
street or another feature.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Correcting a street name on the paper map

The Census Bureau’s Address List and map incorrectly show Bryan St
instead of Ryan St, the correct street name. The map also does not list
the alternate name for the street, which is County Road 9 (Co Rd 9).
Figure 5.4: Correcting a Street Name on the Paper Map

1. Using a purple pencil, cross out the incorrect name, Bryan St,
and print the correct name, Ryan St, above it.
2. Use double hatch marks to show the extent of the name change.
In this instance, the entire street needs to be corrected.
3. Print the alternate name (Co Rd 9) in parentheses.
4. Be sure that your address list matches map corrections.
Correcting the location of a street on the paper map

The Census Bureau’s Address List and map show Winona St as
located in Census Block 2005. According to local sources, Winona St
is located north of Connellsville St in Census Block 1034.
At this location, Winona St includes an odd numbered address range
from 101 through 105 on the north and an even numbered address
range from 100 through 106 on the south.
Winona St intersects Lincoln St between address numbers 502 and
504.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.5: Correcting the Location of a Street on the Paper Map

1. Using a purple pencil, cross out the incorrect location of
Winona St with a series of “Xs.”
2. Redraw Winona St in its correct Census Block, 1034, and print
the street name and address ranges along the moved street.
3. Draw an arrow to the correct location of Winona St.
4. Print the address breaks where Winona St intersects Lincoln St.
5. Be sure that your address list matches map corrections.
Deleting a street on the paper map

In this example, there are two streets and their associated addresses to
delete.
1. All of the housing units along a portion of Dunlap St between
Census Block 3003 and Census Block 3004 have been
demolished, and this section of the street no longer exists.
2. All of the houses on Carlisle St between Census Blocks 3002,
3003, 3006, and 3007 have been demolished. The entire street
no longer exists.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.6: Deleting Streets on the Paper Map

Deleting a section of
Dunlap St on the paper map:
1. Use a purple pencil to “X” out the
section that no longer exists.
2. Use double hatch marks to define
the extent of the deleted segment
when deleting only part of the
street.
3. Dunlap St still exists on the north
side of Pershing Ct.
Deleting Carlisle St on the paper map:
4. To delete Carlisle St, “X” out the
entire street and put a purple line
through the name.

5. Be sure that your address list
matches map corrections.
Shapefiles

Shapefiles require the use of GIS software. The Census Bureau provides
county-based shapefile layers in Environmental Systems Research Institute 13
(ESRI) shapefile format. Participants that submit shapefiles with feature
updates must follow Census Bureau requirements.
To geocode addresses to census blocks, a tabblock shapefile is included.
The shapefiles, created from the MAF/TIGER database, allow you to submit
map feature updates electronically. All linear features in the MAF/TIGER
database are contained in the edges shapefile. Use the edges shapefile to add,
delete, or change linear feature attributes.

All shapefiles provided by the Census Bureau are in Environmental Systems Research Institute (ESRI) format. The
use of brand names does not represent an endorsement of a company or its products by the U.S. Government. Due to
the wide use of ESRI products by our partners in the GIS community, and ubiquitous use of the shapefile format as a
medium for GIS data exchange, the Census Bureau provides data in shapefile format.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

In addition to an edges shapefile, the Census Bureau provides shapefiles for
legal boundaries that you may edit. Refer to the Digital BAS Respondent
Guide included with your LUCA materials for boundary updates.
For more details on the contents of the shapefiles, view the readme.txt file that
is included on the CD-ROM containing your shapefiles.
Submitting Shapefile Feature Information

In order to submit digital feature information, you must have a GIS capable of
importing ESRI shapefiles, editing the features, and exporting layers back into
ESRI shapefile format.
The Census Bureau’s Shapefile Coordinate System and Projection
Information

All shapefiles provided by the Census Bureau are in the following
unprojected geographic based coordinate system:
•
•
•
•
•
•
•
•

GCS_NAD83
Angular Unit: Degree (0.017453292519943299)
Prime Meridian: Greenwich (0.000000000000000000)
Datum: D_North_American_1983
Spheroid: GRS_1980
Semi-major Axis: 6378137.000000000000000000
Semi-minor Axis: 6356752.31414035610000000
Inverse Flattening: 298.257222101000020000

General File Setup Guidelines

Upon receipt of your shapefiles, follow the setup guidelines listed
below before beginning actual updates:
•

Open the CD and enclosed zip file to ensure it contains the
shapefiles for your entity.

•

Copy and decompress the shapefiles to a directory on your
server or hard drive.

•

Open the shapefile in a GIS.

Note: If you are using GIS software that does not contain a shapefile
translator, please contact the Help Desk toll free at 1-866-919-5822 for
further instructions.

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Chapter 5: The Census Bureau Maps

Changing Our Coordinate System to Match Yours

Our files are in GCS_NAD83 format. Please feel free to project these
files into your local coordinate system projection. Most GIS software
packages contain projection wizards, or something similar, allowing
the user to transform file coordinate systems and projections. For
example, if your office uses ArcView to update files, please activate
and utilize ArcView’s ‘Projection Utility Wizard’ extension. If using
ArcGIS, please use its “Projection Utilities” in ArcToolbox.
MAF/TIGER extract shapefiles contain defined projection information
in the *.PRJ file. Both ArcView and ArcGIS access the *.PRJ file for
projection information; therefore, there is no need for you to define
these parameters before changing the file coordinate system.
In addition, if your files are in a datum other than NAD83, you must
geographically transform our files to match your datum. Most GIS
software has tools for performing geographic transformations on files.
If you transform the files to your local coordinate system, we request
that you convert them back to the GCS_NAD83 format before
submitting the file to the Census Bureau. If you encounter problems
transforming our files, please contact the Help Desk toll free at 1-866919-5822 for assistance.
Feature Information

If you have reviewed your features using our shapefiles and have
determined that the Census Bureau needs to add, remove, or rename
features in a given area, you may submit your modifications in a
separate layer. To move or correct the shape of a feature, first delete
the feature then add the correction.
Use the appropriate update code located in the coding scheme as
shown in Figure 5.9 to identify the type of feature modification needed
for submission.
If any issues arise with the shapefiles that you submit, your Census
Bureau Regional Office will attempt to contact you to clarify the issue.
If clarification is not made prior to our project deadline, the updates
may not be incorporated into the MAF/TIGER database. Your updates
are considered temporary until their existence is confirmed during our
Address Canvassing Operation.
Updating the Feature Shapefile

Use the edges layer to provide all feature updates to the Census
Bureau’s shapefile.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Edges Layer Data Dictionary

The data dictionary defines the attribute information for each feature
contained in the edges layer. See Figure 5.7 for an example of the
edges layer data dictionary.
Figure 5.7: Edges Layer Data Dictionary
Field

Length

TLID
MTFCC
FIDELITY
FULLNAME
CHNG_TYPE

10
5
1
120
4

Type

Integer
String
Integer
String
String

Description
®

TIGER/Line ID
Feature MTFCC
Shape Fidelity Flag
Feature name
Type of digital linear update

•

TLID is the TIGER/Line ® ID

•

The MAF/TIGER Feature Class Code or MTFCC is used to
identify the most noticeable characteristic of a feature.
o The MTFCC is a 5-character code; the first character is a
letter describing the feature class. For example, streets and
roads are identified as S1400.
o The Census Feature Class Codes or CFCC were recently
changed to the MTFCC. A crosswalk is provided in
Figure 5.8 as well as in the readme.txt file on your CDROM.

• If the FIDELITY flag contains a value of “1,” the Census Bureau

was unable to maintain the boundary’s shape during the
MAF/TIGER Accuracy Improvement Process (MTAIP).
o The MTAIP project acquired geographic information
system (GIS) files, aerial photography, and GPS data from
various sources nationwide to update the TIGER® database.
o One of the primary goals of the project was to develop a
highly accurate geographic database of the United States.
The Census Bureau focused on improving the accuracy of
street feature coordinates to provide base information
suitable for use with GPS-equipped hand held devices that
would facilitate the gathering of accurate location and
census information for all living quarters and workplaces.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

o To aid the Census Bureau in developing a highly accurate
geographic database, please review all line segments (not
just roads) in the Census Bureau’s edges layer for lines
with a fidelity flag value of “1.” Make necessary boundary
corrections to the affected entity if the boundary has been
coordinately shifted.
•

FULLNAME is the feature name.

•

CHNG_TYPE is the type of digital linear update.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.8: Census Feature Classification MTFCC to CFCC Crosswalk
Census Feature Classification MTFCC to CFCC Crosswalk
Road Features
MTFCC

FEATURE NAME

Interstate Highway or Primary Road with
limited access
Primary Road without limited access, US
S1200
Highway, State Highway, or County Highway,
Secondary and connecting roads
Local Neighborhood Road, Rural Road, City
S1400
Street
S1500
Vehicular Trail (4WD)
S1630
Ramp
Service Drive usually along a limited access
S1640
highway
S1710
Walkway/Pedestrian Trail
S1720
Stairway
S1730
Alley
Private Road for service vehicles (logging, oil
S1740
fields, ranches, etc.)
S1750
Private Driveway
Water Features
S1100

MTFCC
H3010
H3013
H3020
Railroad
MTFCC
R1011

Stream/River
Braided Stream
Canal, Ditch or Aqueduct

A64
A70, A71
A72
A73
A74
N/A
CFCC
H10, H11, H12, H76, H77
H13
H20, H21, H22

FEATURE NAME
Railroad Feature (Main, Spur, or Yard)

Carline, Streetcar Track, Monorail, Other
Mass Transit Rail
R1052
Cog Rail Line, Incline Rail Line, Tram
Miscellaneous Features
FEATURE NAME

P0001

Nonvisible Legal/Statistical Boundary

L4010
L4020
L4110
L4121
L4031
K2451
L4140
L4165

Pipeline
Power Transmission Line
Fence Line
Ridge Line
Aerial Tramway/Ski Lift
Airport or Airfield
Property/Parcel Line
Ferry Crossing

A11, A12, A13, A14, A15, A16, A17,
A18, A19
A21, A22, A23, A24, A25, A26, A27,
A28, A29, A31, A32, A33, A34, A35,
A36, A37, A38, A39
A41, A42, A43, A44, A45, A46, A47,
A48, A49, A61, A62
A51, A52, A53
A63

FEATURE NAME

R1051

MTFCC

CFCC

CFCC
B11, B12, B13, B14, B15, B16, B19, B21,
B22, B23, B29, B31, B32, B33, B39
B51, C31
B52
CFCC
F00, F10, F11, F12, F13, F14, F15, F16,
F17, F18, F19, F20, F21, F22, F23, F24,
F25, F50, F52, F70, F71, F72, F73, F74,
F80, F81, F82, F83, F84, F85, F86, F87,
F88
C10
C20
E10
E21
N/A
D51
F40, F41
A65, B40

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Chapter 5: The Census Bureau Maps

Change Type Codes for Feature Corrections

Each updated line to the edges layer must contain one of the change
type codes (Add Line, Change Attribute, Delete Line) listed in the
coding scheme in Figure 5.9. Record the change type code in the
CHNG_TYPE field in the attribute table for each line.
Figure 5.9: Change Type Codes for Feature Corrections
Code

Description

AL
CA
DL

Add Line
Change Attribute
Delete Line

Each feature update must have a change type code in the change type
field for the line.
•

There are three change type codes:
1. Add Lines

Code – AL

Used to add a new feature (Road, Railroad,
Hydrography, etc.)

2. Change Attribute
Change Name

Code – CA

Used to change the name of a feature

Provide the feature’s new name in the
FULLNAME field

Change Feature Class

Code – CA

Used to change the feature class code (e.g., a local
road mistakenly coded as a highway).

3. Delete Line

Code – DL

Used to delete a feature

The following are examples of change type codes for feature
corrections.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Examples
1. Adding a Feature to the Edges Layer

Spring Street is a new street that needs to be added to the Census
Bureau’s shapefile.
•

Add or copy the missing street or feature into the edges
layer.
In the attribute table:
1. Leave the TLID and FIDELITY fields blank.
2. Enter the appropriate MTFCC. In this example,
S1400.
3. Enter the feature name in the FULLNAME field (if
any), in this case Spring Street.
4. Enter AL in the CHNG_TYPE field.

2. Correcting a Feature Name

Ryan Street is incorrectly identified as Bryan Street.
In the attribute table:
1. Edit the FULLNAME field, in this case correcting
it from Bryan Street to Ryan Street.
2. Enter CA in the CHNG_TYPE field.
3. Procedure for changing the MTFCC of an existing feature

A local road was mistakenly coded as a highway.
In the attribute table:
1. Edit the MTFCC from S1200 to S1400.
2. Enter CA in the CHNG_TYPE field (i.e., a local
road was mistakenly coded as a highway).
4. Deleting a feature

A section of Dunlap Street no longer exists. In addition, the entire
length of Carlisle Street has been replaced by a city park.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

In the attribute table:
1. Enter DL in the CHNG_TYPE field for the
segment of Dunlap Street that no longer exists.
2. Enter DL in the CHNG_TYPE field for all of the
segments for Carlisle Street which no longer exist.
5. Moving a street

The Census Bureau shapefile incorrectly shows the location of
Winona Street.
Add Winona Street in the correct location in the edges layer.
In the attribute table:
1. Enter DL in the CHNG_TYPE field for the
incorrect segment(s) of Winona Street to be deleted.
2. For the new street segment(s), leave the TLID and
FIDELITY fields blank.
3. Enter the appropriate MTFCC.
4. Enter Winona Street in the FULLNAME field.
5. Enter AL in the CHNG_TYPE field.
To move or correct the shape of a feature, first delete the
incorrectly placed or aligned feature and then add the correction.
Figure 5.10 displays the attribute table, updated based on the previous
examples.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.10: Example Attribute Table Updates
TLID

MTFCC

FIDELITY

FULLNAME

CHNG_TYPE

S1400

Spring Street

S1400

Winona Street

9999999995 S1400

Ryan Street

9999999996 S1400

Dunlap Street

9999999997 S1400

Carlisle Street

9999999998 S1400

Carlisle Street

9999999999 S1400

Winona Street

Attribute table update examples:
•
•
•
•
•

Spring Street added.
Bryan Street corrected to Ryan Street.
Segment of Dunlap Street deleted.
Carlisle Street deleted.
Winona Street moved.

Copy all features with values in the CHNG_TYPE field into a new
feature update shapefile. The feature updates shapefile will resemble what
is shown in Figure 5.11, on the next page.

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

Figure 5.11: Digital Road Correction Example
Road Name Change: In the
attribute table, populate the
CHNG_TYPE field with ‘CA’ and the
new road name in the FULLNAME
field for each affected segment.

New Road Feature: Include all new road segments,
in the attribute table. Populate the new road name in
the FULLNAME field for all new segments, and populate
the CHNG_TYPE field with ‘AL.’

Delete Feature: Include all road
segments that you want to delete,
and populate the CHNG_TYPE field
with ‘DL’ in the attribute table

Road Segments

Metadata
Metadata Requirements

Metadata that describe the data content, coordinate system/projection,
author, source, and other characteristics of GIS files are critical for Census
Bureau staff to efficiently and accurately process files. The Census
Bureau requires that a metadata text file accompany every GIS file and
layer submitted.
The Federal Geographic Data Committee’s (FGDC) Content Standard for
Digital Spatial Metadata provides a national standard that enables the datasharing public to easily locate critical information about a file and ensure
that no critical information is omitted inadvertently when creating
metadata. For this reason, the Census Bureau requests that metadata be
submitted using this standard. For information about the FGDC and its
geospatial metadata standards, please visit .

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

The Census Bureau requires that the following sections of the FGDC
metadata form be completed:
•

Citation (information about the originator, publication date, title
edition, and other publications or information).

•

Description (section that contains an abstract describing your data
set).

•

Time period of content (section that describes the vintage of the
data).

•

Spatial domain (information about bounding coordinates).

•

Point of contact (general contact information).

•

Data quality information (information about attribute accuracy).

•

Spatial reference information (section on coordinate system /
projection of the data set).

•

Entity and attribute information (section that describes the contents
of your table).

To help you fulfill the requirement of filling out and submitting metadata,
the Census Bureau suggests visiting the United States Geological Survey
(USGS) Web site at . This site contains useful
information about FGDC compliant metadata, from which one can read
about metadata frequently asked questions, view FGDC metadata
examples, and connect to other FGDC related Web pages. The USGS's
metadata URL is. Moreover, if you are using
Arc/Info, the following link points to a useful Arc Macro Language
(AML) tool that, when executed, completes most of the required sections
of the metadata form automatically
. (This AML is a
product of the Illinois State Geological Survey.)
Note: ESRI’s ArcCatalog also has an embedded program that uses the
FGDC standard in its creation of geospatial metadata.
If you have questions regarding the metadata requirements, please contact
the Help Desk toll free at 1-866-919-5822.
Digital File Submission

Use the following as a guide to ensure that you have included all the
required layers.
•

Name the feature update layer:
LUCA__LN_changes.shp

Option 2–Title 13 Local Address List Submission

Chapter 5: The Census Bureau Maps

The feature update layer must include:
o A value in its “CHNG_TYPE” field that indicates the type
of change.
o Only feature updates (do not include unmodified features).
•

Include the appropriate metadata.

Boundary and Annexation Survey (BAS)

The Census Bureau conducts the Boundary and Annexation Survey (BAS)
each year to determine the inventory of correct names, legal descriptions, and
legal boundaries of counties and equivalent entities, minor civil divisions,
incorporated places, federally recognized American Indian reservations, and
off-reservation trust lands. Title 13, U.S.C. authorizes this voluntary survey.
Specifically, the Census Bureau requests up-to-date boundary information for
local governments and information on the legal actions associated with the
changed boundaries. The Census Bureau enters all boundary and area
information obtained through the BAS into the TIGER® database so that all
subsequent map and Census address list products reflect these changes.
During your review, you may find that the boundary for your jurisdiction does
not depict the correct current location. You may use your LUCA maps to
provide updates to your legal boundaries. If you registered to participate in
the LUCA program before October 31, 2007, you received your 2008 BAS
materials with your LUCA program materials.
The BAS materials for the paper map format include the Boundary and
Annexation Survey Paper Respondent Guide and a Boundary and Annexation
Survey form.
If you selected to receive shapefiles, a layer for legal boundaries that you may
edit is included. Refer to the Boundary and Annexation Survey Respondent
Guide: Digital BAS included on the CD-ROM containing your shapefiles for
instructions on making your boundary edits.

Option 2–Title 13 Local Address List Submission

CHAPTER 6
SUBMITTING YOUR LUCA PROGRAM UPDATES
Submitting LUCA Program Updates
Shipping Your LUCA Materials

Submitting LUCA Materials

After completing your review and update of the LUCA materials, return the
materials with updates to the Census Bureau’s Regional Office responsible for
your jurisdiction. See the back cover for a list of Regional Offices. Include
the inventory form in Appendix F with your returned materials.
•

Save your address list file as a pipe-delimited, ASCII text file. (If you
need further instruction on saving a pipe-delimited, ASCII text file,
please call the Help Desk toll free at 1-866-919-5822.)

•

Name the file containing your local address list
XXyyyyyyyyyy_LUAL.txt (XXyyyyyyyyyy is your entity identification
code found on your LUCA materials).

•

Make a copy of your submitted file to keep for your records and to use
during the Feedback phase of the program.

•

ZIP and password protect your address list file.
o If you do not have ZIP software, Freebyte ZIP software is provided
on your CD-ROM.
o Use the case-sensitive password provided to you by the Census
Bureau.

•

Burn the file to a CD-ROM or DVD.
Note: If you are submitting shapefiles, you may burn all of your
files to one (1) CD-ROM or DVD. See the section, Preparing the
Shapefiles for Submission.

•

Send the CD-ROM or DVD to your Census Bureau Regional Office as
instructed in the section, Shipping Your LUCA Materials.

•

You cannot submit files via e-mail or post the files to an FTP site.

Preparing the Shapefiles for Submission

Note: If you are using ArcGIS, when you copy files to be burned to a
CD-ROM, be sure to use ArcCatalog. ArcCatalog will capture all
required files such as .dbf, .shp, .shx, etc.

Option 2–Title 13 Local Address List Submission

Chapter 6: Submitting Your LUCA Program Updates

•

Name the feature update layer:
LUCA__LN_changes.shp

•

Compress all updated materials – Shapefiles and Metadata (feature
and boundary) – into one ZIP formatted file called:
LUCA_2010__Return.ZIP

•

Save a backup copy of your updated digital file for your records
and to use during the Feedback phase of the program.

•

Burn the file(s) to a CD-ROM or DVD.

•

Send the CD-ROM or DVD with updates to your Census Bureau
Regional Office as instructed in the section, Shipping Your LUCA
Materials.

•

You cannot submit files via e-mail or post the files to an FTP site.

Note: You may burn all of your files (shapefiles and address list) to
one (1) CD-ROM or DVD.
Sorting the Census Bureau’s Paper Maps for Submission
•

Separate the map sheets with updates from those without updates.

•

Make a copy of all map sheets containing updates to keep for your
records to use during the Feedback phase of the program.

•

Organize the updated map sheets by map sheet number.

•

Fold the maps if there are five (5) or fewer map sheets.

•

If there are more than five (5) map sheets, roll the maps and mail
them in a mailing tube or box.

Return only those map sheets containing updates.
Shipping Your LUCA Materials
•

Double wrap all of your address materials.
Note: See Chapter 7 for returning your Title 13, U.S.C. materials
(Census Bureau’s Address List and maps containing structure points)
at the conclusion of the LUCA program.

•

Address all envelopes, mailing boxes, mailing tubes, etc. to:
ATTN: GEOGRAPHY
U.S. Census Bureau
Address for your Census Bureau Regional Office
You can find a list of the Census Bureau’s Regional Office addresses
on the back cover.

Option 2–Title 13 Local Address List Submission

Chapter 6: Submitting Your LUCA Program Updates

•

Use the prepaid, preprinted FedEx label provided to you if you have
FedEx delivery service.

•

Use shipping contractors that provide tracking services, such as U.S.
Postal Service (USPS) certified or registered mail, FedEx, United
Parcel Service (UPS), or similar service.

Option 2–Title 13 Local Address List Submission

CHAPTER 7
RETURNING OR DESTROYING CENSUS BUREAU TITLE 13, U.S.C.
MATERIALS
Program Conclusion
Returning Census Bureau Title 13, U.S.C. Materials
Destroying Census Bureau Title 13, U.S.C. Materials

Program Conclusion

At the conclusion of the appeals process, you must return to the Census
Bureau or destroy all Title 13, U.S.C. address lists and all copies. If you
choose to destroy Title 13, U.S.C. materials, you must follow the Census
Bureau’s specific guidelines for destroying Title 13 materials as described
below or in the Confidentiality and Security Guidelines (See Appendix A).
The designated liaison is required to verify the return or destruction of any
remaining Title 13 materials, both paper and computer-readable (i.e. paper
copies, backup files, etc.) by signing and returning to the Census Bureau the
Return or Destruction of Title 13, U.S.C. Materials form found in Appendix H.
If you return your Title 13 materials to the Census Bureau, this form must be
included. All LUCA program reviewers and anyone with access to Title 13
materials (includes all persons who signed the Confidentiality Agreement
Form) are required to sign and date this form once the appeals process has
concluded. Should any liaison, reviewer, or anyone with access to Title 13
materials leave before the completion of the LUCA program, they are required
to sign out of the program by signing and dating this form. If any liaison or
reviewer leaves and fails to sign and date this form, the current liaison can sign
out on their behalf.
Returning Census Bureau Title 13, U.S.C. Materials
•

Double wrap all Title 13 materials. This includes your original CDROM and all paper copies and backup files of the Census Bureau’s
Address List and Feedback maps containing structure points.

•

Label both sides of the inner envelope or wrapping with the disclosure
notice as shown below and in Appendix G:
“This Package Contains U.S. Census Bureau Address Information:
DISCLOSURE PROHIBITED BY Title 13 U.S.C.”

•

Do not label the outer envelope with the disclosure notice.

•

Address all envelopes, mailing boxes, mailing tubes, etc. to:
ATTN: GEOGRAPHY
U.S. Census Bureau
Address for your Census Bureau Regional Office

Option 2–Title 13 Local Address List Submission

Chapter 7: Returning or Destroying Title 13, U.S.C. Materials

You can find a list of the Census Bureau’s Regional Office addresses
on the back cover.
•

Use the prepaid, preprinted FedEx label provided to you if you have
FedEx delivery service.

•

Use shipping contractors that provide tracking services, such as U.S.
Postal Service (USPS) certified or registered mail, FedEx, United
Parcel Service (UPS), or similar service.

Destroying Census Bureau Title 13, U.S.C. Materials
•

Only those individuals who signed the Confidentiality Agreement
Form are permitted to destroy the materials.

•

Never deposit Census Bureau confidential materials in a trash or
recycle container before destruction.

•

Store the materials in a secure area in a container labeled “document
destruction container” until they are destroyed.

•

The destruction process must prevent recognition or reconstruction of
the paper or computer-readable information. Use one of the following
methods to destroy census confidential materials:
Shredding.
o Chemical decomposition.
o Pulverizing (such as, hammer mills, choppers, etc.).
o Burning (only in a facility approved by the Environmental
Protection Agency).
o Clear magnetic media (tapes, disks, hard drives) containing
Census Bureau address information before reuse. To clear,
overwrite all Title 13 data a minimum of three times using a
commercial disk utility program or degauss using a commercial
degausser.
o Clear diskettes by running a magnetic strip of sufficient length
to reach all areas of the disk over and under each surface a
minimum of three times. If the information cannot be
destroyed as suggested, the disk must be damaged in an
obvious manner to prevent use in any disk drive unit and
discarded.
o Destroy CD-ROMs and DVDs using a commercial grade
shredder, suitable for rendering them un-useable; or cut them
up with scissors in an obvious manner to prevent use in a drive
unit.
Note: Hand tearing or burying information in a landfill are
unacceptable methods of disposal before destruction.
o

If you have questions regarding the destruction of Title 13 materials,
contact your Census Bureau Regional Office.
56

Option 2–Title 13 Local Address List Submission

APPENDICES

Appendix A
Confidentiality and Security Guidelines
The law requires the U.S. Census
Bureau to maintain the confidentiality
for all of the information that it collects.
The Census Bureau takes its
responsibility to protect the
confidentiality of the information it
collects very seriously. Respondents
place their trust in the Census Bureau
each time they complete a survey or an
interview. This trust in confidentiality is
critical to the success of the Census
Bureau’s mission to collect and report
the most accurate data possible. To
uphold the law, the Census Bureau
requires that all individuals who work
with the Census Bureau’s confidential
materials read, understand, and agree to
abide by the confidentiality and security
guidelines outlined below.

thereof to examine the individual
reports.”
Section 214 of the Code and the
Uniform Sentencing Act of 1984 set the
penalty for the wrongful disclosure or
release of information protected by Title
13 at a fine of not more than $250,000
or imprisonment for not more than
5 years, or both.
To implement this law, all Census
Bureau employees (both temporary and
permanent) take an oath to maintain the
confidentiality of the census information
they encounter in their work. Census
information includes:
•

Everything on a completed or
partially completed questionnaire or
obtained in a personal or telephone
interview.

•

Individual addresses maintained by
the Census Bureau that Local
Update of Census Addresses
(LUCA) Program liaisons review.

•

Maps that identify the location of
individual housing units and/or
group quarters (“structure points”).

Why Address Information Is Protected

Title 13, United States Code (U.S.C.),
provides for the confidential treatment
of census-related information. Chapter
1, Section 9 of the code states:
“Neither the Secretary, nor any other
officer or employee of the Department of
Commerce or bureau or agency thereof,
or local government census liaison,
may, except as provided in section 8 or
16 or chapter 10 of this title…
1) use the information furnished under
the provisions of this title for any
purpose other than the statistical
purposes for which it is supplied; or
2) make any publication whereby the
data furnished by any particular
establishment or individual under
this title can be identified; or
3) permit anyone other than the sworn
officers and employees of the
Department or bureau or agency

Title 13 of the U.S.C. does not protect
generalized address information, such as
the address range data available in the
Census Bureau’s digital shapefile
products.
In 1994, the U.S. Congress amended
Chapter 1 of Title 13 to allow local
government designated census liaisons
to review the Census Bureau’s address
list for their area. This amendment
recognizes the important role that local
knowledge and participation can play in
building and updating an accurate,
comprehensive census address list. In
amending this chapter, the Congress

Appendix A: Confidentiality and Security Guidelines

reaffirmed the confidential nature of
address information.
The Confidentiality Agreement

Each participating government must
designate a primary liaison. The
primary liaison, all reviewers, and
anyone with access to Title 13, U.S.C.
materials must understand and sign the
Confidentiality Agreement. The Census
Bureau considers all individuals who
have access to the Census Bureau’s
address information and maps showing
the location of housing units and group
quarters, liaisons. Therefore, all Option
1 and Option 2 2010 Decennial Census
LUCA Program liaisons, reviewers, and
anyone with access to Title 13 materials
must sign the Confidentiality
Agreement.
Signatures on this form constitute an
agreement by each individual to abide
by the security guidelines outlined
below. While access to Title 13
protected information is temporary, the
commitment to keep the information
confidential is permanent.
•

The Census Bureau will not
deliver the address list materials
to Option 1 and Option 2
participants until we have
received a completed and signed
Confidentiality Agreement and
Self-Assessment Form.

•

Although you may have prior
confidentiality agreements on file
at the Census Bureau, these will
not fulfill the requirements of the
2010 Decennial Census LUCA
Program.

Security Guidelines

The Census Bureau recognizes the fact
that the implementation of these
guidelines may vary slightly from one
participant to another. Regardless, the

result must be the same for each
participant – nondisclosure of
information protected by Title 13,
U.S.C.
The primary liaison accepts the
responsibility for protecting and
safeguarding the LUCA program
materials covered by Title 13, U.S.C.
This includes any list that shows
individual Census Bureau addresses
and any Census Bureau map or digital
file that shows individual housing units
and/or group quarters location
(“structure points”). The primary
liaison must restrict access to the Census
Bureau’s address information to those
individuals who have signed the
Confidentiality Agreement. The liaison,
reviewers, and anyone with access to
Title 13 materials must sign the
Confidentiality Agreement.
As you read the Census Bureau’s
security requirements, keep in mind the
important role security plays in the
overall responsibilities of each LUCA
program liaison, reviewers, and anyone
with access to Title 13 materials. The
Census Bureau must have your full
cooperation and commitment to
following these guidelines. Together,
we will maintain the confidential
information entrusted to the Census
Bureau by the Congress and the
American public.
Protecting Census Bureau Address
Information

The Census Bureau will conduct
training workshops covering all aspects
of the LUCA program. In addition, the
workshops will provide the participating
governments with an opportunity to
review the security guidelines and
safeguards to protect against illegal use
of Census Bureau address information.
Census Bureau staff conducting the
workshops will provide information to
help you decide who in your

Appendix A: Confidentiality and Security Guidelines

organization needs to have access to the
Census Bureau’s Address List and will
review the civil and criminal penalties
for improper or illegal use of the data.

Bureau address information is
stored. Lock the room whenever
you leave.
•

Do not leave Census Bureau address
information unattended at your
desk. Return any Title 13 data to
secure storage when you are not
using it.

•

Only make copies of the
information necessary to complete
your task. Do not leave the copying
machine unattended while making
copies. All copied material
containing Title 13 information
must bear the statement:

Onsite Visits

To ensure that participating entities or
organizations are maintaining adequate
security safeguards, the Census Bureau
may make on-site visits to review your
government or organization’s security
procedures. The Census Bureau will
strive not to disrupt your office
operations. A typical visit would
include a review of:
•

Storage and handling of Census
Bureau address information.

•

Employee access to Census Bureau
address information.

•

The physical safeguard of the
computers, rooms, and buildings
where the Census Bureau address
information is stored.

•

Instructions to employees about
security.

•

Data processing operations
(including use of passwords).

•

Employee awareness of their
responsibilities to protect the
confidentiality of Census Bureau
addresses.

“This document contains
information, the release of which
is prohibited by Title 13, U.S.C.,
and is for U.S. Census Bureau
official use only. Wrongful
disclosure or release of
information can be punished by
fine or imprisonment (Public
Law 99-474).”
•

To FAX a document containing
Census Bureau address information
to a Census Bureau location, make
sure the document is properly
labeled with the disclosure
statement: “DISCLOSURE
PROHIBITED BY Title 13,
U.S.C.”, verify the FAX number
before sending, and arrange for a
Census Bureau employee to be at
the FAX machine to receive it and
acknowledge receipt.

•

Do not disclose precise or even
anecdotal information about Census
Bureau addresses or locations to
anyone who has not signed the
Confidentiality Agreement Form or
is not a Census Bureau employee.

Protecting Paper Copies of Census
Bureau Address Information and Maps

•

Keep all Census Bureau address
information in a locked room during
non-work hours. If possible, store
the Census address materials and
maps showing structure points in
locked desks or cabinets.

•

During work hours, do not leave a
room unattended where Census
Appendix A: Confidentiality and Security Guidelines

Protecting Computer-Readable Census
Bureau Address Information and Maps

Operating systems, programs,
applications, and data related to the
review of Census Bureau addresses must
be accessible only to LUCA program
liaisons and reviewers. The automated
data processing (ADP) system should
restrict the read, write, delete, and
execute functions applicable to the
Census Bureau’s addresses.
The ADP system must use log-on
routines that require a user-ID and
password that conform to the following
guidelines:
•

Assign a unique user-ID and
password for liaisons, reviewers,
and anyone with access to Title 13
materials.

•

Passwords must consist of at least 8,
nonblank characters consisting of at
least one alphabet letter and either
one number or one special character
($,*, &). No more than six
consecutive characters (AAAAAA)
may appear in the password, and
then only once.

•

Reject passwords that are the same
as the user-ID or that have been
used within the last 6 months.

•

Encrypt passwords.

•

Disable passwords after three bad
attempts.

•

Do not display passwords on
terminals or printers.

•

Change passwords every 90 days
(more frequent change is optional)
or immediately, if compromised.

•

On new accounts, the user must
change the assigned password to a

unique password the first time they
log on.
The ADP system must display a
warning log-on feature. Computer
screens must display a warning that
states:
**WARNING*WARNING*WARNING**
YOU HAVE ACCESSED A COMPUTER
SYSTEM CONTAINING UNITED STATES
GOVERNMENT INFORMATION. USE OF
THIS COMPUTER WITHOUT
AUTHORIZATION OR FOR PURPOSES
FOR WHICH AUTHORIZATION HAS NOT
BEEN EXTENDED IS A VIOLATION OF
FEDERAL LAW AND CAN BE PUNISHED
BY FINE OR IMPRISONMENT (Public Law
99-474). ALL USE MAY BE
INTERCEPTED, MONITORED,
RECORDED, COPIED, AUDITED,
INSPECTED, AND DISCLOSED TO
AUTHORIZED LAW ENFORCEMENT
OFFICIALS. REPORT SUSPECTED
VIOLATIONS TO YOUR AGENCY
SECURITY OFFICER. USE OF THIS
SYSTEM INDICATES YOU CONSENT TO
THIS WARNING. LOG OFF
IMMEDIATELY IF YOU DO NOT AGREE
TO THE CONDITIONS OF THIS
WARNING.
**WARNING*WARNING*WARNING**

If Census Bureau address information is
placed on a shared computer system,
construct electronic security profiles to
allow only LUCA program liaisons,
reviewers, and anyone with access to the
Census Bureau’s address information.
Test your security to ensure that only
LUCA liaisons and reviewers are
permitted access to the Census Bureau’s
address information.
ZIP and password protect Title 13
Census Bureau address information.
Lock all rooms containing computers
with Title 13 Census Bureau address
information and all associated media
during non-work hours.
Do not leave computers with Census
Bureau address information unattended
during work hours. Log-off the

Appendix A: Confidentiality and Security Guidelines

computer/system or lock the room
whenever you leave.
Label any computer diskettes, CDROMs, DVDs, tapes, cartridges or other
computer storage media containing
Census Bureau address information with
the following:
“This document contains information,
the release of which is prohibited by
Title 13, U.S.C., and is for U.S. Census
Bureau official use only. Wrongful
disclosure or release of information
can be punished by fine or
imprisonment (Public Law 99-474).”
If backup is necessary, do not send the
tapes, cartridges, or disks off-site. Store
them in a secured area. Do not mix,
store, or back-up LUCA data with
other data.
Clear magnetic media (tapes, disks, hard
drives) containing Census Bureau
address information before reuse. To
clear magnetic media, overwrite all Title
13 data three times at a minimum using
a commercial disk utility program or
degauss using a commercial degausser.
Program any software you develop for
displaying the Census Bureau addresses
to label each affected page of a printout
containing Census Bureau address
information with the following:
“This document contains information,
the release of which is prohibited by
Title 13, U.S.C., and is for U.S. Census
Bureau official use only. Wrongful
disclosure or release of information
can be punished by fine or
imprisonment (Public Law 99-474).”
Returning Census Bureau Title 13
Materials

Once you have completed your initial
review and update of the LUCA
materials, return only those materials

with updates to the Census Bureau’s
Regional Office responsible for your
jurisdiction. Make a copy of all updated
pages to keep for your records. Retain
all non-annotated Title 13 materials until
you receive your feedback materials.
Keep all retained address lists and
copies in a secure location.
Use the following guidelines to ship the
updated materials:
•

Ship all Census Bureau confidential
material in two opaque sealed
envelopes that are durable enough to
prevent someone from viewing or
tampering with the enclosed
materials.

•

Label both sides of the inner
envelope or wrapping with the
disclosure notice:
“DISCLOSURE PROHIBITED
BY Title 13, U.S.C.”

•

DO NOT label the outer envelope
with the “DISCLOSURE
PROHIBITED BY Title 13,
U.S.C.” notice.

•

Address the outer envelope to:
ATTN: GEOGRAPHY
U.S. Census Bureau
Address for your Census Bureau
Regional Office

•

Use shipping contractors that
provide tracking services, such as
U.S. Postal Service certified or
registered mail, FedEx, United
Parcel Service, or similar service.

Return or Destruction of Census Bureau
Confidential Materials

After the appeals process has concluded,
all Title 13, U.S.C., Census Bureau
address lists and maps containing
structure points must be returned or

Appendix A: Confidentiality and Security Guidelines

destroyed according to the Census
Bureau’s specific guidelines for
returning or destroying confidential
material.
The liaison is required to verify the
return or destruction of any remaining
Title 13 materials, both paper and
computer-readable including all paper
copies, backup files, etc. The liaison
must sign and return to the Census
Bureau the “Return or Destruction of
Title 13, U.S.C. Materials” form. In
addition, all LUCA program reviewers
and anyone with access to Title 13
materials who signed the Confidentiality
Agreement are required to sign this form
once their participation in the LUCA
program has ended. Should any liaison,
reviewer, or anyone with access to Title
13 materials leave before the end of the
LUCA program, they are required to
“sign-out” of the program by signing
and dating this form.

Burning (only in a facility
approved by the Environmental
Protection Agency)

Clear magnetic media (tapes,
disks, hard drives) containing
Census Bureau address
information before reuse. To
clear, overwrite all Title 13 data
a minimum of three times, using
a commercial disk utility
program or degauss using a
commercial degausser.

Clear diskettes by running a
magnetic strip of sufficient
length to reach all areas of the
disk over and under each
surface a minimum of three
times. If the information cannot
be destroyed as suggested,
damage the disk in an obvious
manner to prevent use in any
disk drive unit and discard.
Note: Hand tearing or burying
information in a landfill are
unacceptable methods of
disposal before destruction.

Only those individuals who signed the
Confidentiality Agreement are permitted
to destroy Title 13, U.S.C. materials.
c

•

Never deposit Census Bureau
confidential materials in a trash or
recycle container before destruction.

•

Store the materials in a secure area
in a container labeled “document
destruction container” until they are
destroyed.

•

The destruction process must
prevent recognition or
reconstruction of the paper or
computer-readable information.
Use one of the following methods to
destroy census confidential
materials:
c

Shredding

Chemical decomposition

Pulverizing (such as, hammer
mills, choppers, etc.)

Destroy CD-ROMs and DVDs
using a commercial grade
shredder, suitable for rendering
them un-usable, or cut them up
with scissors in an obvious
manner to prevent use in a drive
unit.

Appendix A: Confidentiality and Security Guidelines

Appendix B
The Map Legend

Appendix B: The Map Legend

The map legend describes the various symbols and colors used on the paper
maps. The legend is divided into three columns:
1. The Symbol Description column includes the type of features,
boundaries, and geography shown on the map.
2. The Symbol column shows the symbols representing the feature in the
symbol description.
3. The Name Style column shows an example of the name of a particular
feature such as a road, waterway, or geographic area displayed on the
map.
Boundaries
The first group of symbols in the legend refers to different boundary types or
geographic area shown on the map. Each type of boundary has a distinct
color or symbol.

Appendix B: The Map Legend

Transportation
The second group of symbols
represents various types of
transportation features.
Thicker lines identify major
roadways such as interstates
and U.S. highways while
thinner lines represent
secondary roads and city
streets. Also identified are culde-sacs and circles. Jeep trails,
walkways, stairways, and
ferries, represented by
distinctive dashed lines, are
included in this section.

Other Features
The third group of symbols represents
other feature types such as pipelines and
streams and nonvisible boundaries.
Streams and shorelines are blue and
geographic offset and corridors are
speckled red.

Appendix B: The Map Legend

Landmarks
The last group of symbols
represents various landmarks on
the map such as rivers and lakes,
glaciers, airports, cemeteries,
golf courses, jails, military
installations, parks, and
mountain peaks. The area
outside of the subject area is
speckled gray.

Footnotes and Notes
The footnote and notes section of the legend provide additional information and
details on geographic relationships, boundaries, and symbols

Appendix B: The Map Legend

Appendix C
Physical Location Description and Street Type Abbreviation Examples

Full Name
Alternate Route
Avenue
Blue
Boulevard
Brown
Boarded Up
Circle
County Highway
County Road
Court
Drive
East
Four-Wheel Drive Trail
Freeway
Green
General Delivery
Hospital
Highway Contract Route
House
Interstate
Intersection
Lane
North
Parkway
Post Office Box
Road
Route
Rural Route
South
Star Route
State Highway
State Road
State Route
Street
Thoroughfare
Township Highway
Township Road
West
White
Yellow
With

Abbreviations
ALT
AVE
BL
BLVD
BRN
BU
CIR
CO Hwy
CO Rd
CT
DR
E
4WD
FWY
GR
GEN DEL
HOSP
HCR
HSE
I
INT
LN
N
PKWY
PO BOX
RD
RTE
RR
S
ST RT
ST HWY
ST RD
ST RTE
ST
THFR
TWP HY
TWP RD
W
WHT
YLW
W/

Appendix C: Physical Location Description and Street Type Abbreviation
Examples

Appendix D
Unit Designation Abbreviation Examples

Name
Apartment
Basement
Bottom
Downstairs
Floor
Front
Interior
Level
Lower
Middle
Mobile Home
Number
Penthouse
Room
Right
Space
Studio
Suite
Suites
Trailer
Upper
Upstairs

Abbreviation
APT
BSMT
BOTM
DOWN
FLR
FRNT
INTE
LVL
LOWR
MIDL
MH
#
PH
RM
RGHT
SP
STUD
STE
STES
TRLR
UPPR
UPS

Appendix D: Unit Designation Abbreviation Examples

Appendix E
Confidentiality Agreement Form

Appendix E: Confidentiality Agreement Form

Appendix F
Inventory Form

Appendix F: Inventory Form

Appendix G
Special Disclosure Notice

Special Notice

This Package Contains
U.S. Census Bureau
Address Information

DISCLOSURE PROHIBITED BY
TITLE 13, U.S.C.

U.S. Department of Commerce
U.S. Census Bureau
4/04/2007
D-1657

Appendix G: Special Disclosure Notice

Appendix H
Return or Destruction of Title 13, U.S.C. Materials Form

Appendix H: Return or Destruction of Title 13, U.S.C. Materials

GLOSSARY

Address breaks – Address breaks are the city-style addresses on each side of a boundary
or at an intersection of a street with another street or another feature.
Address count list – Identifies the number of housing unit addresses and group quarters
addresses on the Census Bureau’s address list for each census block within a jurisdiction.
Address range – The lowest and highest address numbers used to identify structures
along each side of a street segment that has city-style addresses. Usually one side of the
street has even address numbers and the other side has odd address numbers.
Block number – A 4-digit number, plus one alpha character block suffix, if applicable,
used by the Census Bureau to identify each census block. Census blocks are numbered
uniquely within each census tract.
Boundary – A line, either invisible or coincident with a visible feature that identifies the
extent of a geographic entity, such as a census tract, city, or county.
Boundary and Annexation Survey – An annual survey to collect information about
selected legally defined geographic areas. The BAS is used to update information about
the legal boundaries and names of all governmental units in the United States.
Census Bureau address list – A nationwide list of all housing unit and group quarters
addresses known to the Census Bureau. In addition to the mailing address and ZIP Code,
the address list may identify the location of each housing unit and group quarters.
Census block – A geographic area bounded by visible features, such as streets, roads,
streams, and railroad tracks, and invisible features, such as the boundaries of
governmental units and other legal entities. A census block is the smallest area for which
the Census Bureau collects and tabulates statistical information. Census blocks are
numbered within census tracts and are unique to the census tract to which they belong.
Census block number –Census block numbers contain a 4-digit number plus one alpha
character, if applicable, e.g. 3001A. Suffixes, such as 2011A and 2011B, reflect
boundary changes as well as added features.
Census Bureau – An agency within the U.S. Department of Commerce. The U.S.
Census Bureau is the country's preeminent statistical collection and dissemination
agency. It publishes a wide variety of statistical data about people and the economy of
the nation. The Census Bureau conducts approximately 200 annual surveys and
conducts the decennial census of the United States population.
Census Bureau map – Any map produced by the Census Bureau. A Census Bureau
map displays geographic entities used in a Census Bureau sponsored census or survey for
which the Census Bureau tabulates data.

Glossary

Census tract – A small, relatively permanent statistical division of a county or
statistically equivalent entity, delineated for the purpose of presenting Census Bureau
statistical data. Census tracts never cross the boundary of a county or statistically
equivalent entity, but may split other geographic entities; e.g., minor civil divisions and
places.
Census tract number – Unique numbers to identify census tracts within a county or
statistically equivalent entity. Census tract numbers contain up to a 4-digit number
followed by a decimal point and a 2-digit number for suffixed tracts, e.g., 1234.01. For
census tracts without a suffix, the number will contain a period with zero fill, e.g.,
4567.00. Leading zeros are not shown on Census Bureau maps.
Chief executive/highest elected official – The person most responsible for the
governmental activities of a local government. This person receives the LUCA Program
invitation letter, and must designate a LUCA liaison, if desired.
City-style address – An address that consists of a house number and street name; for
example, 201 Main Street. The address may or may not be used for the delivery of mail
and may include apartment numbers/designations or similar identifiers.
Confidentiality – The guarantee made by law (Title 13, United States Code) to
individuals who provide information about themselves or their business to the Census
Bureau. This item refers to the Census Bureau’s promise of nondisclosure of that
information to others.
County – The primary legal division of most states. Most are governmental units with
powers defined by state law.
Delivery Sequence File (DSF) – A computerized file containing all delivery point
addresses serviced by the U.S. Postal Service (USPS). The USPS updates the DSF
continuously as its letter carriers identify addresses for new delivery points or
changes in the status of existing addresses.
Edges shapefile – All linear features in the MAF/TIGER database are contained in the
edges shapefile. Use the edges shapefile to add, delete, or change linear feature
attributes.
Enumeration – The process of interviewing people and recording the information
on census forms.
Feature – Any part of the landscape, whether natural (such as, a stream or ridge) or
artificial (such as a road or power line). In a geographic context, features are any part of
the landscape portrayed on a map, including nonvisible boundaries of legal entities, such
as city limits or county lines.

Glossary

Federal Information Processing Standards codes (FIPS codes) – a standardized set of
numeric or alphabetic codes issued by the National Institute of Standards and Technology
(NIST) to ensure uniform identification of geographic entities through all federal
government agencies. The entities covered include: states and statistically equivalent
entities, counties and statistically equivalent entities, named populated and related
location entities (such as places and county subdivisions), and American Indian and
Alaska Native areas.
Geocodes – Codes that place an individual address in its correct geographic location,
which includes the correct state, county, census tract, and census block codes.
Geographic Information System (GIS) – A computer system for the storage, retrieval,
and maintenance of information about the points, lines, and areas that represent the
streets and roads, rivers, railroads, geographic entities, and other features on the surface
of the Earth-information that previously was available only on paper maps.
Governmental unit – A geographic entity established by legal action for the purpose of
implementing specified governmental functions. Most governmental units provide a
number of general government services and raise revenues (usually through taxing
authority).
Group quarters – A place where people live or stay, in a group living arrangement, that
is owned or managed by an entity or organization providing housing and/or services for
the residents. This is not a typical household-type living arrangement. These services
may include custodial or medical care as well as other types of assistance, and residency
is commonly restricted to those receiving these services. People living in group quarters
are usually not related to each other.
Group quarters include such places as correctional facilities, juvenile facilities, nursing
homes, hospitals with long-term care facilities, college or university dormitories,
fraternities, sororities, dormitories for workers, religious group quarters, shelters, group
homes.
Housing unit (HU) – A single-family house, townhouse, mobile home, trailer,
apartment, group of rooms, or a single room occupied as a separate living quarters or, if
vacant, intended for occupancy as a separate living quarters. A separate living quarters is
one in which one or more occupants (or intended occupants, if vacant) live separate from
any other individual(s) in the building and have direct access to the living quarters
without going through another living quarters, such as from outside the building or
through a common hall.
Legal boundary – The legally defined boundary of a governmental unit, usually
referring to a county, minor civil division, or incorporated place. The legal boundary
identifies the area within a local government's jurisdiction, and thus bounds the area of
LUCA responsibility.

Glossary

LUCA liaison – Also known as the program primary liaison or designated liaison. A
person voluntarily appointed by the chief executive/highest elected official of each
jurisdiction to review the Census Bureau’s address list and maps against local records to
identify differences.
MAF/TIGER Database – The Census Bureau’s nationwide geographic database, which
integrates the Master Address File (MAF) and Topologically Integrated Geographic
Encoding and Referencing (TIGER®) files.
MAF/TIGER Partnership Software (MTPS) – A GIS application provided by the
Census Bureau that has customized functionality required by Census Bureau geographic
partnership programs.
Map Sheet to Block Number Relationship List – A list identifying census block
numbers and the Census Bureau map(s) on which each block is located.
Master Address File (MAF) – A nationwide database of all addresses to support many
of the Census Bureau’s operations. Besides containing mailing addresses and ZIP
Codes, a MAF record also contains geographic information about the location of
addresses.
Metadata – describes the data content, coordinate system/projection, author,
source, and other characteristics of GIS files.
Minor civil division (MCD) – A type of governmental unit that is the primary
governmental or administrative subdivision of a county. MCDs are identified by a
variety of terms, such as town (in 8 states), township, and/or district, and include both
functioning and nonfunctioning governmental entities.
Noncity-style address – An address that does not have a house number and/or street
name or may not include a complete house number and street name address. This
includes rural route and box number address and highway contract route addresses, etc.,
which may include a box number, post office boxes and drawers, and general delivery.
Occupied housing unit – A housing unit is classified as occupied if it is the usual place
of residence of the individual or group of persons living in it at the time of enumeration
or if the occupants are only temporarily absent; for example, away on vacation.
Occupied rooms or suites of rooms in hotels, motels, and similar places are classified as
housing units only when occupied by permanent residents, that is, individuals for whom
the facility is their usual place of residence.
Place – A concentration of population either legally bound as an incorporated place
or identified by the Census Bureau as a census designated place.
Regional Office – One of 12 permanent Census Bureau offices responsible for the
Census Bureau’s office and field operations within its region.

Glossary

Shapefile – Data set used to represent geographic features such as streets and
boundaries. Shapefiles can represent point, line, or area features and require GIS or
mapping software.
Street segment – The portion of a street or road between two features that intersect that
street or road, such as other streets or roads, railroad tracks, streams, and governmental
unit boundaries. The Census Bureau records the known address ranges for every street
segment with city-style addresses.
Structure Point – A dot on a Census Bureau map, used to show the location of
one or more living quarters. A 4-digit number plus one alpha character assigned
within a census block to each structure point. Structure points are stored in the
TIGER® database.
®

Topologically Integrated Geographic Encoding and Referencing (TIGER ) – A
computer database that contains a digital representation of all map features (streets,
roads, rivers, railroads, lakes, and so forth) required to support Census Bureau
operations, the related attributes for each, and the geographic identification codes for all
entities used by the Census Bureau to tabulate data for the United States, Puerto Rico,
and Island Areas.
Vacant housing unit – A habitable structure containing living quarters that is not
occupied. New housing units not yet occupied are classified as vacant housing units if
construction has reached a point where exterior windows and doors are installed and final
usable floors and a roof are in place. Vacant units are excluded if open to the elements,
or if there is positive evidence, such as a sign on the house, that the housing unit is to be
demolished or has been condemned.

Glossary

INDEX
A
Address breaks
defined, 36
Address control file 1990, 2
defined, 2
Address count list
file name, 15
pipe-delimited file example, 26
Address list
entity ID codes, 17
file format, 18
file name, 15
opening files, 18
pipe-delimited file city-style example, 22
pipe-delimited noncity-style example, 23
protecting, 13
restricting access, 14–15
software requirements, 17
Title 13, 57
Address range
in TIGER, 3
Address types, 9
nonresidential, 9
residential, 9
B
Block number
defined, 73
Boundary
defined, 73
C
Census address list improvement act of
1994, 2
Census block
defined, 10, 73
Census Bureau
responsibilities, 3
Census Bureau paper map
adding streets, 35
correcting street location, 37
correcting street names, 37
deleting streets, 38
index sheets, 31
information, 32
inset sheet, 32
parent sheets.
sample, 33
Census tract. See also census tract number
defined, 10, 74
Census tract number. See also census tract,
See also census tract
78

defined, 10, 74
Chief executive/highest elected official
defined, 74
invitation, 1
City-style address. See house number and
street name addresses, See house number
and street name addresses
defined, 1, 9, 74
Confidentiality
defined, 74
D
Delivery sequence file (DSF), 2
Disclosure notice, 55
F
Feature
defined, 74
G
Governmental unit
defined, 75
Group quarters
acceptable types, 8
defined, 8, 75
unacceptable types, 8
H
House number and street name addresses, 9
Housing unit
acceptable, 7
defined, 7, 75
unacceptable types, 8
L
Legal boundary
defined, 75
Liaison
chief-executive/highest elected official,
74
defined, 76
Local address list
sources, 12
LUCA program
destroying title 13 materials, 56
explained, 1
return title 13 materials, 55–56
schedule, 5
shipping materials, 53
training, 5
M
Map sheet to block number relationship list,
34
example, 35
Master address file (MAF)
Index

S
Shapefile
defined, 77
submitting feature information, 40
Software requirements, 17
Strategies for review, 11
Structure point
confidential, 57
defined, 77
Title 13, 57
Structure points
feedback, 13
LUCA review, 13
T
Topologically integrated geographic
encoding and referencing. See also
®
TIGER/Line file
defined, 77

creation, 2
defined, 76
Minor civil division. See legal boundary
N
Noncity-style address
defined, 9, 76
Non-house number and street name
addresses. See non-city style addresses
Nonresidential addresses, 9
O
Occupied housing unit
defined, 76
P
Participant responsibilities, 3
Pipe-delimited file
address count list, 26
address list city-style example, 22
address list noncity-style example, 23
defined, 17
R
Return or destruction of title 13 materials
form, 55, 72

Index

U.S. Census Bureau Regional Offices
Toll Free 1-866-511-LUCA (5822)
Atlanta Regional Office

Detroit Regional Office

ATTN: Geography

Atlanta, GA 30303-2700

Detroit, MI 48207

Boston Regional Office

Kansas City Regional Office

ATTN: Geography

4 Copley Place, Ste. 301

1211 North 8th Street

Charlotte Regional Office

Los Angeles Regional Office

ATTN: Geography

901 Center Park Drive, Ste. 106

15350 Sherman Way, Ste. 400

Chicago Regional Office

New York Regional Office

ATTN: Geography

1111 W 22nd Street, Ste. 400

395 Hudson Street, Ste. 800

Dallas Regional Office

Philadelphia Regional Office

ATTN: Geography

8585 N Stemmons Freeway, Ste. 800 S

833 Chestnut Street, Ste. 504

Denver Regional Office

Seattle Regional Office

ATTN: Geography

6900 W Jefferson Avenue, Ste. 100

601 Union Street, Ste. 3800

101 Marietta Street, N W, Ste. 3200

Boston, MA 02116

Charlotte, NC 28217-2935

Oak Brook, IL 60523-1918

Dallas, TX 75247

Denver, CO 80235

1395 Brewery Park Blvd, Ste. 100

Kansas City, KS 66101-2129

Van Nuys, CA 91406

New York, NY 10014

Philadelphia, PA 19107-4405

Seattle, WA 98101-1074

File Type	application/pdf
File Title	Chapter 1
Author	Bureau Of The Census
File Modified	2007-10-15
File Created	2007-10-15