Apply for a Washington Trucking Permit

Jan. 3, 2026, 3:30 p.m.
If you’re operating commercial trucks in Washington State and your vehicle or load exceeds legal limits — or you’re an out-of-state carrier needing temporary credentials — you must obtain the correct trucking permit before entering or traveling on Washington highways.
Apply for a Washington Trucking Permit

What Is a Washington Trucking Permit?

A trucking permit allows vehicles that exceed standard legal size or weight limits to travel legally on Washington roads. This includes oversized or overweight loads, special configurations (like double trailers), and temporary use vehicles lacking full state registration. 

 Who Needs a Permit?

Permits are required if your vehicle or load:

  • Exceeds legal dimensions (width, height, or length limits). 

  • Exceeds weight limits without proper licensing. 

  • Is driven by an out-of-state carrier without IRP/IFTA credentials and requires a trip or fuel permit. 

 Step-by-Step: How to Apply

Here’s a clear, search-friendly breakdown of the permit application process:

1. Determine What Permit You Need

Before applying, determine which permit category fits your operation:

Trip Permit (3 days) – For out-of-state carriers without full Washington registration.
Fuel Permit (3 days) – If you don’t have IFTA fuel tax credentials and your truck meets weight/axle criteria. 
Oversize/Overweight Permit – For vehicles or loads exceeding size/weight limits. 
Annual/Monthly Permits – For regular oversize/overweight operations. 

2. Gather Required Information

When applying online, you will typically need:

 USDOT number
 Vehicle license plate and state
 VIN (Vehicle Identification Number)
 Gross vehicle weight and number of axles
 Load dimensions (length/height/width)
 Travel start date and destination details 

3. Apply Online via WashingtonTruckingOnline.com

Most permits can be obtained quickly online using www.washingtontruckingonline.com:

  1. Visit the site and choose the permit type (Trip Permit, Fuel Permit, or Oversize/Overweight). 

  2. Enter your vehicle and load details. 

  3. Confirm your travel dates and locations. 

  4. Pay the permit fee with a credit card. 

  5. Download or print the permit — keep it in your truck during travel. 

 Many carriers receive digital permits immediately after payment. 

4. Follow Additional Conditions

Some permits may include:

  • Approved routes and restrictions

  • Escort/pilot car requirements for wide loads

  • Time-of-day or seasonal travel limits

  • Required markings, flags, or safety equipment 

 Tips to Avoid Penalties

 Always purchase the permit before entering Washington. 
Check state route restrictions and clearances. 
 Keep permits accessible for inspections. 
 If hauling large or heavy loads, consider routing services or consulting experts. 

 Summary

Applying for a Washington trucking permit doesn’t have to be complicated. Just:

  1. Determine the type of permit you need.

  2. Prepare your vehicle/load information.

  3. Apply online through WashingtonTruckingOnline.com and pay the fee.

  4. Follow any specific conditions on your permit.

With the right documentation and planning, you’ll stay compliant and avoid costly penalties.

 

https://wsdot.wa.gov/travel/commercial-vehicles/commercial-vehicle-permits