Double Trailer Monthly or Annual

What is the purpose of this permit?
To allow divisible loads to be carried on a set of double trailers beyond the legal 61 ft. up to 68 feet (30 day periods to one year).
Who issues this permit?
Washington State Department of Transportation
What activities require this permit?
Double trailer legal length is 61 feet. This permit allows up to 68 feet measured from front of the first trailer or load to the end of the last trailer or load whichever is longer. The load may be divisible or non-divisible.
How much will this permit cost?
$10.00 for Monthly or $100.00 per Year
Where can I get the application for this permit?
The application is called 'DOT Form 560-026' is online and can be accessed at
Do I need to include anything with my application?
No - Only the permit application and permit fee is required to issue the permit
Is the decision on my permit dependent on anything besides the information in my application?
No - The application and permit fee is all that is required in order to issue the permit
How long will it take to review my application?
This permit is issued as requested. There is no review time necessary.
Where do I submit my application?
You can self-issue this permit type by accessing WSDOT's self issue permit program at, you can contact a Permit Agent or visit any WSDOT Permit Office. For information about Permit Agents or WSDOT Permit Offices see:
How long is my permit valid?
Permit is valid for a monthly (30-days) period, if a monthly permit purchased or for one-year, if an annual permit is purchased
What is the appeal process for the permit?
Notes / Comments:
This permit is exempt from: Commuter hour and holiday restrictions, Oversize sign requirements, night-time travel restrictions, & winter restrictions prohibiting permitted movement when traction tires/devises/chains are advised, recommended or required but must obey chain requirements.
Legal Authority:
Permit Timeliness Results

Permit Timeliness data collection is in response to a State Auditor’s Performance Audit and RCW 43.42A. Each regulatory agency developed a plan to improve permit clarity, predictability, and timeliness. Each agency considers the customers experience to ensure permit assistance is simple to use, easy to access, and designed in a customer-friendly manner. Agencies report progress to the Governor’s Office for Regulatory Innovation and Assistance (ORIA). ORIA prepares and distributes reports, with participation from the State Auditor’s Office and Results Washington. See latest report here:

All permits submitted for reporting were entered into this Regulatory Handbook. Here are the results of the performance data:

Estimated Time Required By the Agency to Process a Permit Application (Definition)
Average number of days from Receipt to Complete: 1
Maximum number of days from Receipt to Complete: 1

Estimated Time Required By the Agency to Issue a Permit Decision (Definition)
Average number of days from Complete Application to Decision: 1
Maximum number of days from Complete Application to Decision: 1

(Summary results based on 10455 submittals in 2023)

Where can I get permitting assistance?
Web page URL:
Helpdesk phone: (360) 704-6340
Subject matter expert phone: (360) 704-6340 - 3 Permit Specialists
Subject matter expert email:
Washington State Department of Transportation
Commercial Vehicle Services
7345 Linderson Way SW
PO Box 47367
Tumwater, WA 98504-7367
Telephone: (360) 704-6340
* Permit information last updated 3/1/2022