Hello CTPP! The Census bureau has proposed criteria for geography for the 2020 census in the Federal Register. The criteria is open for comment until May 16, 2018. Click here: https://www.federalregister.gov/documents/2018/02/15 and scroll to Census Bureau for the proposed criteria most relevant to you! (Census Block Groups, Census County Divisions and Equivalent Entities, Census Designated Places, and Census Tracts). The CTPP oversight board strongly urges you to read the notices, respond as appropriate, and get involved in the Participant Statistical Areas Process (PSAP), as custom small geography in the CTPP tabulation will be discontinued after the next tab. Please see attached memo. For info and updates visit: http://ctpp.transportation.org/Pages/Policy-Change-on-Small-Geography.aspx Penelope Weinberger Transportation Data Program Manager AASHTO