UCR registration is required for most interstate carriers holding a USDOT number. UCR registration is also required for Brokers and Freight Forwarders.
In July 2012, the Federal Motor Carrier Safety Administration (FMCSA), in conjunction with its State Partners and the Commercial Vehicle Safety Alliance, refined the roadside inspection system, ASPEN, to improve the Safety Measurement System (SMS).
On August 204, 2012, the Department of Transportation’s Federal Motor Carrier Safety Administration (FMCSA) recently announced various changes to its "Compliance, Safety, Accountability" (CSA) program.