FMCSA Registration Modernization: MC Number Retirement

Official FMCSA FAQ for the Unified Registration System (URS). As of October 1, 2025, FMCSA retired MC numbers — all motor carriers, brokers, and freight forwarders now operate under a single USDOT number. Consumers should verify movers by USDOT number only going forward. System fully launches for all registrants in 2026.