Department of Licensing
Trip and Special Fuel Permits
Vehicle License Trip Permits
( Appendix D-4)

A vehicle license trip permit allows a vehicle to operate for three consecutive days at the maximum legal weight for that vehicle (up to 40,000 pounds for a single unit vehicle, and up to 80,000 pounds for a combination vehicle). The permit is in lieu of license or registration.
Out-of-state vehicle prorated with Washington State are not required to purchase a trip permit.
A trip permit for a truck pulling a licensed trailer provides authority to operate up to 80,000 pounds gross weight of both trailer and towing unit. A separate trip permit for both the truck and trailer is required if the trailer is not currently registered.
If a vehicle is currently registered and has had valid tonnage during the current registration period, that vehicle cannot be operated on a trip permit in lieu of buying regular tonnage.
If a vehicle is currently registered and has valid tonnage but is not tonnage to the maximum, a trip permit may be used to increase temporarily the tonnage on a vehicle up to 40,000 pounds for a single unit vehicle and up to 80,000 for a combination vehicle.
No more than three trip permits may be issued in any period of 30 consecutive days. The cost of each permit is $25.
Each permit shall identify, as DOL may require, the vehicle for which it is issued and shall be completed in its entirety, signed, and dated before operation of the vehicle on any public highways. Any correction such as date, license number, or VIN number invalidates the permit.

Special Fuel Trip Permits

A special fuel trip permit may be purchased by a user entering this state in lieu of a special fuel license. The permit is for a user operating a commercial motor vehicle that uses diesel fuel.
Operators of vehicles with a gross weight of more that 26,000 pounds will require a special fuel license or a special fuel trip permit to enter this state. The user must be the registered owner or lessee of the vehicle or a motor vehicle dealer. If the driver is not the registered owner, registration of that vehicle will suffice. The cost for each permit issued is $30.
Each permit is valid for three consecutive days beginning and ending on the dates specified on the face of the permit. Every permit shall identify, as DOL may require, the vehicle for which it is issued and shall be competed in its entirety, signed, and dated before operation of the vehicle on any public highway. Any correction such as the date, license number, or VIN number invalidates the permit.