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Oregon's Environmental Laboratory Accreditation Program

About ORELAP

The Oregon Environmental Laboratory Accreditation Program (ORELAP) is recognized by The NELAC Institute's (TNI) National Environmental Laboratory Accreditation Program (NELAP).

ORELAP accredits qualified laboratories for testing under the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), the Safe Drinking Water Act (SDWA), and Cannabis testing under ORS 475C.540 to 475C.590.  ORELAP also accredits psilocybin testing under ORS 475A.590 to 475A.622.

Effective January 1, 2021, the 2016 TNI Standard is the accreditation standard for ORELAP laboratories.

The ORELAP Data Input and Edit (ODIE) tool is an online application where registered users can create a laboratory profile, submit an application for accreditation, and maintain their current accreditation.


The Laboratory Accreditation Management System (LAMS) is a database maintained by TNI.  If you are looking for an accredited laboratory to perform environmental testing, search LAMS.  For ORELAP accredited laboratories, set the accreditation body search field to "Oregon Environmental Laboratory Accreditation Program".

Accreditation Process

Items of Interest

  • Permanent changes to OAR Chapter 333, Division 64 became effective December 27, 2022.  These changes establish rules for the accreditation of psilocybin testing laboratories.  Please see our Rule Page for more information.
  • Permanent changes to OAR Chapter 333, Division 64 became effective July 15, 2022.  These changes affect the fee schedule for accreditation.  Certain fees will be increasing, and the tier system will be changing.  Please see our Rule Page for more information.
  • Permanent changes to OAR Chapter 333, Divisions 7 and 64 became effective January 1, 2022.  Additional changes to the rules became effective March 31, 2022 and July 1, 2022.  More changes will become effective on March 1, 2023.  These changes affect Cannabis testing.  See our Rule Page for more information.