State-Specific Permits: Some states require additional permits for commercial vehicles. These can include fuel permits, trip permits (for vehicles not registered in the state they are traveling through), and tax permits.

Standard Carrier Alpha Code (SCAC): Required for carriers operating internationally, the SCAC is used to identify transportation companies and is necessary for customs and tariff tracking.

Hazardous Waste Transport License: If a company transports hazardous waste, additional licensing may be required at both the federal and state level.