What is MC/DOT authority and why is it important in dispatch?

• A. A code identifying insurance policy type.
• B. Used for route optimization.
• C. Indicates freight class.
• D. Motor Carrier and U.S. Department of Transportation numbers provide legal authority to operate, required for carriers.

Answer: (D)

MC/DOT authority is the legal permission for a trucking company to operate as a motor carrier. The MC number shows the carrier has authority to haul goods in interstate commerce, while the USDOT number is a regulator ID used to track the company’s safety, insurance, and compliance history. Together, they prove the carrier is licensed and qualified to move freight.

In dispatch, you must verify that a carrier has active MC authority and proper insurance before booking. This protects your company from regulatory penalties and freight liability, helps ensure payment, and reduces risk if something goes wrong. If authority is missing, expired, or suspended, the carrier isn’t legally able to haul the load. You typically check these details in official databases (like FMCSA SAFER) to confirm the authority type, status, and that it matches the lane and load requirements.