DOT Truck Census


Source U.S. Department of Transportation
File Size 1.81 GB
Dates Covered Current as of Sept. 2008
Cost Snapshot

  • Nonmembers $150
  • Members $50
Categories: ,


The U.S. Department of Transportation’s Truck Census File contains records on each company that has commercial interstate vehicles weighing more than 10,000 pounds. This group includes buses, semis and shippers of hazardous materials. The data does not give specific details about individual trucks.A word of caution:

The Truck Census database contains safety ratings and accident ratings, but that information has not been updated on a consistent basis for all carriers. The DOT is phasing in a new safety review program called SafeStat. It replaces the old system that used “satisfactory,” “conditional” or “unsatisfactory” ratings with a four-part statistical analysis based on data about drivers, vehicles, safety management and accidents. In 2002, several fields related to SafeStat were added to the Census1 table, but the data is not available for all carriers. Contact the SafeStat program directly to find out if additional SafeStat records exist for carriers identified in this data. (For program details and online carrier reports, see

A word of caution when joining this data: If you do try to join the two, beware of incomplete census numbering by the Accidents database. Over half of the Truck Accidents file contains multiple carriers with census numbers that have all zeros, which is obviously incorrect. There are also errors in the existing DOT census numbers. Accidental duplication of numbers, omitted numbers and other errors do occur. If it seems that the name of the carrier in one database is not consistent with a name in a joined table, you will need to verify information on a case by case basis.

Record layouts and samples of this database

Main documentation (readme08.doc) 33.0 KB
Data sample (census08.xls) 267.2 KB
Record layout (Layout08.xls) 45.0 KB

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