Applying for Laboratory Accreditation
The Washington State Department of Ecology and most other governmental agencies, as well as many grant providers, require that all scientific samples be assessed by an accredited laboratory. Summary of Requirements contains more information on this. Ecology is the accrediting body for the state of Washington. This page offers information for laboratories seeking Washington State accreditation.
The Procedure Manual for the Environmental Laboratory Accreditation Program describes all steps in detail.
The Application for Environmental Laboratory Accreditation is available for download. Also include your Quality Assurance manual, Proficiency Testing study reports, and any third-party accreditation/certification documents.
Quality Assurance Manual
Accredited labs must have a Quality Assurance manual. The Quality Assurance section of the Procedure Manual (PDF) has more information. The QA Manual Review Checklist and Sample QA Manual, Model of a Quality Assurance Manual for a Small Wastewater Treatment Plant Laboratory, may help, as well.
Include all Proficiency Testing (PT) study reports. Current PTs must be obtained from Proficiency Testing Sample Providers approved by Ecology, either from listed providers or by special arrangement with the Lab Accreditation Unit.
Procedure Manual section on Proficiency Testing provides more detailed information.
Method Codes: TNI LAMS is the National Environmental Laboratory Accreditation Management System test methods database at The NELAC Institute.
After we complete the review of the application package, Ecology's Fiscal Department will send the lab an invoice for the fee.
Fee Schedule for Accreditation of Environmental Laboratories at Chapter 173-50-190 of the Washington Administrative Code for the fee schedule. The fee for accreditation is for a one-year period.
Application Review and Audit
Applicants must pass an on-site audit by Ecology or another recognized accrediting authority. The lead assessor assigned to the laboratory will arrange for the initial on-site assessment of the lab's analytical capabilities. For more information, contact Ella Rae at 360-871-8840 or Ella.Rae@ecy.wa.gov.
Contact the Lab Accreditation Unit or contact the Ecology staff member using your data, e.g. discharge permit manager, project manager, or grant administrator for more information.
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