Abbreviation: FMCSA
Federal Motor Carrier Safety Administration
The U.S. Department of Transportation agency responsible for regulating and enforcing commercial motor vehicle safety standards, including CDL standards, driver qualifications, and carrier registration.
FMCSA issues the Federal Motor Carrier Safety Regulations (FMCSR) and maintains the Clearinghouse, TPR, National Registry, and SAFER systems.
Last updated: June 4, 2026