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Certificates, permits, and licenses
Popular pages
Business licenses
Information about when a King County business license is required and how to apply if you need one.
Permits customer services
Customer support for building, land use, and other permits issued by King County Permits.
Taxi, For-Hire, and Transportation Network Company (TNC) Licensing
All for-hire drivers, vehicles, and the companies they drive for must be approved by King County. They must also follow King County for-hire transportation rules and regulations.
Limousines, town cars, executive vehicles, luxury vehicles, and classic cars are not regulated by King County.
Additional links
Business licenses
Information about when a King County business license is required and how to apply if you need one.
Do you need a permit?
Find out if you need a permit for your project.
Document library
Find common forms and documents needed to do business with the Recorder's Office
Driver resources
Each for-hire transportation driver in King County and Seattle must have a license or permit issued by King County. TNC drivers: TNCs submit an application for a For-Hire Driver Permit on behalf of each of their affiliated drivers when the driver first signs up with the TNC and annually thereafter. Taxicab and flat-rate for-hire vehicle drivers: Each driver applies for a Regional For-Hire Driver's License directly with King County for the first license and for each annual renewal thereafter. Taxicab and flat-rate for-hire vehicle drivers (Enhanced option): Drivers have the option to apply for an Enhanced Regional For-Hire Driver's License or update a Regional For-Hire Driver's License to Enhanced, which requires the driver to pass a fingerprint-based background check in addition to all the Regional For-Hire Driver's License requirements.
Fire and special event permit process - Building and land use
Find out how to apply for permits involving flammable liquid tanks, fireworks, fire systems, and special events.
Food business permits
Learn how to get a new food business permit, renew an existing permit, or submit construction plans for retail food businesses. Short URL: kingcounty.gov/foodpermit
Food worker cards
Find out how to get food worker cards.
For-hire permit and decal display
The for-hire permit and vehicle decal must be visible.
Frequently Asked Questions (FAQ)
Answers to frequently asked questions about online records search
Frequently Asked Questions (FAQ)
Answers to frequently asked questions about document recording
Get a food worker card
Learn how to get a food worker card in King County by taking a food safety training class and exam.
Get a replacement food worker card
Learn how to get a replacement food worker card.
Licensed/registered companies
Look through our list of licensed regional dispatch agencies and transportation network companies (TNCs).
Make changes to birth or death certificates
How to make changes to birth and death certificates, including parentage and sex designation.
Marriage Frequently Asked Questions (FAQ)
Frequently asked questions about marriage licensing and wedding ceremonies
Marriage licensing
Congratulations on your upcoming marriage! King County wants to make obtaining your marriage license quick and easy.
Meat cutter license
Learn how to get a meat cutter license in King County by taking a Meat Cutter exam. Short URL: kingcounty.gov/meat-cutter
Online records search
Search our free online database of King County's official records
Order a birth certificate
How to order a birth certificate for someone born in King County or Washington state.
Permit forms, application materials, and resources - Building and land use
The King County Permitting Division provides land use, building, and fire regulatory and operating permits, code enforcement, and a limited number of business licenses in unincorporated areas of the county.
Permits
King County Permits provides land use, building, and fire regulatory and operating permits, code enforcement services, and a limited number of business licenses to the unincorporated areas of King County.
Permits–customer services
Need help? You're in the right place! Feeling a bit lost on our new website? This page will guide you through all the different ways you can reach out to us. If you can't find what you're searching for, we're here to assist and ensure you get the information you need.
Permitting reports
Find report readouts on new applications, issued permits, and permit performance.
Pet business permits: How to get started
How to submit plans for a new pet business permit, take over an existing pet business, or renew an existing permit.
Plumbing and gas piping applications and permits
Learn how to submit a plumbing or gas piping plan review application or get a homeowner's permit.
Regulations and notices
Learn more about regulations and notices for taxi, for-hire, and transportation network companies (TNCs).
Rider resources
Information for people riding in taxis, flat-rate for-hire vehicles, or transportation network companies (TNCs)
Right-of-way use permits
Right-of-way (ROW) use permits authorize the use of the King County right-of-way for a designated purpose.
Scooter share pilot program
2020-2023
Taxi driver application process and fees
If you will drive for a taxi or for-hire company, you will need a regional for-hire driver's license. If you will drive for a transportation network company (TNC), you need a TNC for-hire driver permit.
Taxi, For-Hire, and Transportation Network Company (TNC) Licensing
Information about taxi, for-hire, and transportation network company (TNC) licenses, permits, and other resources.
TNC driver application process
If you will drive for a transportation network company (TNC), you need a for-hire driver permit. If you will drive for a taxi or for-hire company, you will need a regional for-hire driver's license.
TNC Frequently Asked Questions (FAQ)
Answers to frequently asked questions