Requirements and Exemptions
For Trucks and Truck Tractors with PA Farm Vehicle Registration or Exemption:
Intrastate-Operated Farm Vehicles and Combinations Exempt – Farm vehicles and farm vehicle-powered combinations operated intrastate (trips made exclusively within Pennsylvania) should not be required to have or display a USDOT number, unless the vehicle or combination is transporting hazardous materials in amounts that require the truck to display hazardous materials placards. An administrative order issued by the Pennsylvania Department of Transportation in December 2010 has waived requirements for “nonhazardous” intrastate farm vehicles to have or display USDOT numbers.
USDOT Number Requirement for Interstate Farm Vehicles and Combinations – Farm vehicles and farm-vehicle-powered combinations with an actual weight or weight rating of greater than 10,000 pounds that are operated outside of Pennsylvania will be required to have a USDOT number, and display on the vehicle the name of the business, the place where the business is located, and the USDOT number assigned to the business (Fed Regs § 390.21). There are no exceptions provided to farms or other business.
For Non-Commercial Vehicles:
Vehicles not being operated to further a commercial or business purpose should not be subject to US DOT number requirements.
For Vehicles with PA Commercial Registration:
Pennsylvania’ intrastate motor carrier regulations require vehicles with commercial registration plates and combinations powered by vehicles with commercial registration plates to have and display a USDOT number if the actual weight or weight rating of the vehicle or combination is greater than 17,000 pounds. Federal motor carrier regulations also require interstate-operated vehicles with commercial registration plates and combinations powered by vehicle commercial registration plates to have and display a USDOT number if the actual weight or weight rating of the vehicle or combination is greater than 10,000 pounds.