Public Health Laboratories

The Washington State Public Health Laboratories (PHL) provides diagnostic and analytical services for the assessment and surveillance of infectious, communicable, genetic, and chronic diseases and environmental health concerns.

Directory of Services

Learn about the entire laboratories and services in the Directory of Services (PDF, 78 pages, 3.5 MB).

Directory of Services (PDF, 78 pages, 3.5 MB).

Or, take a quick view of services in our brochure About Public Health Laboratories (PDF).

About Public Health Laboratories (PDF).

Address and Phone Number

Telephone: 206-418-5400
Fax: 206-367-1790 *DO NOT send patient information to this number - it is not a secure line.
1610 NE 150th Street
Shoreline, WA 98155

PHL Accreditations and Licenses

California Department of Public Health Clinical and Public Health Laboratory License

California Department of Public Health grants the State of Washington Public Health Laboratories with a Clinical Laboratory License and Certificate of Deemed Status (PDF).

American National Standards Institute (ANSI)

ANSI National Accreditation Board.

The PHL Office of Environmental Laboratory Sciences Environmental and Radiation Chemistry Group is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017.
This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system. ANSI Accreditation (PDF)

College of American Pathologists (CAP)

College of American Pathologists.

The PHL achieved CAP accreditation. This is a peer-based inspection process that combines regulatory and educational coaching from the world's most respected pathology organization. This process uses the highest standards in pathology and laboratory medicine and applies those standards through the accreditation program.
College of American Pathologists Laboratory Accreditation (PDF)

Letter of CAP Inspection Potential Delay Due to COVID (PDF)

Department of Ecology

Full accreditation has been granted to Office of Environmental Laboratory Sciences by Department of Ecology for the analytical parameters listed on the Scope of Accreditation.Medical Test License

Medical Test Site Accredited License (PDF)