Commercial Driver's License Information System.
Click on any of the following items to learn more. They issue the licenses and assess the qualifications and validity of each of their drivers. The States and Washington, DC are the backbone of Commercial Driver's Licensing.
Analysis Analysis, Research, & Technology.Update My USDOT Number and/or Authority.Apply for a New USDOT Number and/or Authority.Main Menu - Registration - Registration 2 ADA Requirements for Over-the-Road Bus Companies.National Registry of Certified Medical Examiners.Regulations Regulations, Rules, & Notices.
