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 Can Tennessee provide the directory structure so that the insurance companies can start scripting? How is the new price schedule different from how I reported in the past? How do I determine if Tennessee is my home base for IFTA licensing and reporting? What if I am having issues accessing my account with Auto Data Direct, Inc.? Is compressed natural gas subject to sales and use tax?