Boundary and Annexation Survey File: ReadMe_BoundaryandAnnexationSurvey_GUPS.txt U.S. Census Bureau Geography Division This Compact Disk/Digital Video Disk (CD/DVD) contains all information needed by the Boundary and Annexation Survey (BAS) participant. You do not have to read/print all of the attachments. You can also find information about the BAS at our website: WHAT MATERIALS ARE INCLUDED ON THE CD/DVD? The materials you receive on the CD/DVD are outlined below: Geographic Update Partnership Software (GUPS) We encourage you to contact the Census Bureau with any questions about BAS. Phone: 1-800-972-5651 Email: Website: Boundary and Annexation Survey File: ReadMe_BoundaryandAnnexationSurvey_GUPS.txt