27 Cfr 479.102

[Code of Federal Regulations]
[Title 27, Volume 2]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 27CFR479.102]

[Page 143-144]

TITLE 27--ALCOHOL, TOBACCO PRODUCTS AND FIREARMS

CHAPTER II--BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES,
DEPARTMENT OF JUSTICE

PART 479_MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER
FIREARMS--Table of Contents

Subpart G_Registration and Identification of Firearms

Sec. 479.102 How must firearms be identified?

(a) You, as a manufacturer, importer, or maker of a firearm, must
legibly identify the firearm as follows:
(1) By engraving, casting, stamping (impressing), or otherwise
conspicuously placing or causing to be engraved, cast, stamped
(impressed) or placed on the frame or receiver thereof an individual
serial number. The serial number must be placed in a manner not
susceptible of being readily obliterated, altered, or removed, and must
not duplicate any serial number placed by you on any other firearm. For
firearms manufactured, imported, or made on and after January 30, 2002,
the engraving, casting, or stamping (impressing) of the serial number
must be to a minimum depth of .003 inch and in a print size no smaller
than 1/16 inch; and
(2) By engraving, casting, stamping (impressing), or otherwise
conspicuously placing or causing to be engraved, cast, stamped
(impressed), or placed on the frame, receiver, or barrel thereof certain
additional information. This information must be placed in a manner not
susceptible of being readily obliterated, altered or removed. For
firearms manufactured, imported, or made on and after January 30, 2002,
the engraving, casting, or stamping (impressing) of this information
must be to a minimum depth of .003 inch. The additional information
includes:
(i) The model, if such designation has been made;
(ii) The caliber or gauge;
(iii) Your name (or recognized abbreviation) and also, when
applicable, the name of the foreign manufacturer or maker;
(iv) In the case of a domestically made firearm, the city and State
(or recognized abbreviation thereof) where you as the manufacturer
maintain your place of business, or where you, as the maker, made the
firearm; and
(v) In the case of an imported firearm, the name of the country in
which

[[Page 144]]

it was manufactured and the city and State (or recognized abbreviation
thereof) where you as the importer maintain your place of business. For
additional requirements relating to imported firearms, see Customs
regulations at 19 CFR part 134.
(b) The depth of all markings required by this section will be
measured from the flat surface of the metal and not the peaks or ridges.
The height of serial numbers required by paragraph (a)(1) of this
section will be measured as the distance between the latitudinal ends of
the character impression bottoms (bases).
(c) The Director may authorize other means of identification upon
receipt of a letter application from you, submitted in duplicate,
showing that such other identification is reasonable and will not hinder
the effective administration of this part.
(d) In the case of a destructive device, the Director may authorize
other means of identifying that weapon upon receipt of a letter
application from you, submitted in duplicate, showing that engraving,
casting, or stamping (impressing) such a weapon would be dangerous or
impracticable.
(e) A firearm frame or receiver that is not a component part of a
complete weapon at the time it is sold, shipped, or otherwise disposed
of by you must be identified as required by this section.
(f)(1) Any part defined as a machine gun, muffler, or silencer for
the purposes of this part that is not a component part of a complete
firearm at the time it is sold, shipped, or otherwise disposed of by you
must be identified as required by this section.
(2) The Director may authorize other means of identification of
parts defined as machine guns other than frames or receivers and parts
defined as mufflers or silencers upon receipt of a letter application
from you, submitted in duplicate, showing that such other identification
is reasonable and will not hinder the effective administration of this
part.

(Approved by the Office of Management and Budget under control number
1512-0550)

[T.D. ATF-461, 66 FR 40601, Aug. 3, 2001]