Where do I apply for a USDOT number or inactivate my USDOT? Click here to apply for a USDOT number (or inactivate). September 05, 2015 19:46 Related articles How do I determine if Tennessee is my home base for IFTA licensing and reporting? What Motor Carrier functions can I do online through TNTAP? Updating Your Profile How is the new price schedule different from how I reported in the past? Can Tennessee provide the directory structure so that the insurance companies can start scripting?