(required for all interstate motor carriers)
Email UCR Assistance Department
(required for all interstate motor carriers above 26,000+, 3 axles or more)
Email IFTA Department
(required for all US DOT number holders)
Email Biennial Updates Department
(Required for Supervisors of CDL drivers)
Email RST Department
Qualify Drivers Prior Hiring
Email your DQ File inquiry
(required for Texas Intrastate Carriers)
Email TxDMV Support
(queries required for all CDL drivers) - Enforcement started January 6, 2021
Email Clearinghouse Department
(required annually for CDL drivers)
Email Motor Vehicle Records Department
Required completion when hiring a driver
Email Pre-Employment Department
(required for vehicles 55,000+ lbs. in gross weight)
Email Heavy Vehicle Use Tax Department
(required for drivers operating vehicles 26,000+ lbs. in gross weight)
Email Random Program Department
(you must close your US DOT number if not used or update it to keep it active and in compliance)
Email Biennial Updates Department
(use this link to challenge roadside inspection violations)