US DOT Numbers, Who must apply?
All motor carriers operating a Commercial Motor Vehicle in Interstate or Foreign commerce be assigned and display a USDOT number before interstate operations begin. This includes all intrastate private, exempt, for hire and passenger motor carriers. Motor carriers operating intrastate transporting placarded hazardous materials must also comply. **Non Haz Mat Intrastate carriers domiciled in Connecticut and Maryland must apply for a DOT number off line and it will take 4 to 6 weeks for the state to process. A Commercial Motor Vehicle is defined by the FMCSR Part 390.5 for the purpose of compliance with DOT Marking Requirement 390.21: Commercial Motor Vehicle means any self-propelled or towed motor vehicle used on a highway in interstate commerce to transport passengers or property when the vehicle: has a gross vehicle weight rating (GVWR) or gross combination weight rating (GCWR) or gross combination weight (GVW) of 10,001 pounds or more; Is designed to transport more than 8 passengers
