Washington city permit guide

Seattle Food Truck Permits and Mobile Vendor Checklist

Seattle food truck operators usually need Public Health Seattle & King County approval, and food trucks or trailers may need Washington L&I approval before the pre-operational inspection can be finalized.

Smiling food-truck vendor at the serving window
Your next stop starts with the right paperwork. Photo: Tima Miroshnichenko / Pexels. Illustrative stock photo.
County health

PHSKC permit or exemption and plan review

State

L&I approval and business license

City

Seattle street-use/vending permissions

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.

  1. Public Health Seattle & King County mobile food service business permit
  2. Washington L&I approval for food trucks and trailers when required
  3. Seattle street-use or vending permits
  4. Washington business license and tax registration
  5. Commissary, 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.

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.

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.

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.

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.

PermitWatchdog

Turn this guide into a tracked dashboard

PermitWatchdog helps Seattle food trucks track King County health, L&I, Seattle vending, state business license, commissary, and route/location records.