The quick answer
Common Seattle Food Truck items we track
Start with the address and use of the space. New openings, remodels, ownership changes, alcohol service, mobile operations, and special equipment can each add requirements.
- 01Public Health Seattle & King County mobile food service business permit
- 02Washington L&I approval for food trucks and trailers when required
- 03Seattle street-use or vending permits
- 04Washington business license and tax registration
- 05Commissary, plan review, route vending, fire, and location checks
Your permit checklist
What permits does a Seattle Food Truck need?
Start with the address and use of the space. New openings, remodels, ownership changes, alcohol service, mobile operations, and special equipment can each add requirements.
01
County health
PHSKC Mobile Food Service Business Permit
Also seen as: King County mobile food permit, mobile food unit plan review
Seattle's mobile vending handbook says a Public Health permit or exemption is needed to operate a food cart, food vehicle, trailer, or kiosk in Seattle.
02
State safety
Washington L&I Approval
Also connected to: food truck or trailer approval before pre-operational inspection
Seattle notes food truck and trailer applications can be submitted before L&I approval, but L&I must approve the unit before King County approves the pre-operational inspection and permit application.
03
City
Seattle Vending or Street Use Permit
Also connected to: public right-of-way, route vending, sidewalk vending
Seattle has separate vending permit paths, and route vending can be limited or exempt depending on the food and location.
04
State tax
Washington Business License and Tax Registration
Also seen as: business license application, DOR account
Washington vendors should track business license registration and tax account requirements separately from health and street-use permits.
Before you apply
Give yourself a better starting point
Truck approval can block health approval
For trucks and trailers, L&I approval may be needed before the final King County inspection approval.
Permit or exemption matters
Some route vending scenarios hinge on whether Public Health requires a permit or grants an exemption.
Right-of-way is separate
Seattle vending permits are different from the health permit.
The checklist changes by location
A commissary, private lot, park, or street route can all change the document set.
A little more clarity
Common questions
Does a Seattle food truck need King County approval?+
Yes. Seattle points food vehicles, carts, trailers, and kiosks to Public Health Seattle & King County for permit or exemption review.
Does L&I matter for Seattle food trucks?+
For trucks and trailers, Seattle says L&I approval is needed before King County issues the operating permit after inspection.
Can PermitWatchdog track exemptions?+
Yes. You can track a permit, exemption, or pending approval as a compliance item.
Go straight to the agency
Official sources
Use the linked agency guidance for current instructions. Fees, application details, and requirements can change. Confirm them with the agency for your address and operation.
This guide is informational and is not legal or tax advice. It is a starting checklist, not a guarantee that every approval for your business is included. The stock photo does not identify a PermitWatchdog customer or a verified business in this location.