The following is a note sent to me by Valerie Murdock, Census Bureau, Geography Division. Nanda Srinivasan ***************************** November 22, 1999 was the absolute cut-off date. Traffic Analysis Zone (TAZ) polygon equivalency file submissions are no longer accepted by the Census Bureau. Polygon equivalency files that are sent via the Census Bureau*s File Transfer Protocol (FTP) site or as email attachments after this date will be processed only if resources are available. The Census Bureau will not guarantee that files received after November 22, 1999 will be inserted into the TIGER data base. Traffic Analysis Zone Verification Phase II * TIGER/Line 1999 The Census Bureau will create a verification TIGER/Line file for the Federal Highway Administration (FHWA) to distribute to the Metropolitan Planning Organizations (MPOs) and state Department of Transportation (DOT) agencies for the verification phase of the TAZ program. The files will be available for release between January and March 2000 to all participants that submitted a TAZ polygon equivalency file to delineate Census 2000 TAZs.During the verification phase of the TAZ program, participants will have an opportunity to review the Census 2000 TAZ boundaries, and submit corrections and limited revisions. Participants will only submit a new polygon equivalency file if they have more than 20 corrections or revisions to their Census 2000 TAZ plan, otherwise participants may submit sketch maps. TAZ participants will have 30 days to complete their verification work and resubmit any corrections. There will not be another opportunity to review the Census 2000 TAZs prior to the release of the Census Transportation Planning Package (CTPP) 2000.Verification TIGER/Line files are based on an extract of the TIGER data base with a reference date of January 1, 1999 for governmental unit boundaries. These files will include proposed Census 2000 TAZs, along with an updated feature network, current governmental unit boundaries, including American Indian reservation and trust land boundaries, and proposed Census 2000 statistical area boundaries such as census tracts, census block groups, census designated places (CDPs), and census county divisions (CCDs).