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Cannabis Testing

Resources for Laboratories Seeking Accreditation for Cannabis Testing

ORELAP accredits Cannabis testing under ORS 475C.540 to 475C.590.  Laboratories are accredited to the TNI Standard and are held accountable to the rules found in OAR Chapter 333, Division 64.  Currently, laboratories must be located in Oregon to be accredited for Cannabis testing.

Information on the recent judicial stay of Aspergillus testing

Reporting Reminders, February 2024


Permanent changes to OAR 333 Division 64 effective July 23, 2024
  • Requires mycotoxin biological tissue proficiency test (PT) samples to be in usable marijuana matrix (effective August 1, 2024)
  • Adds a requirement that laboratories obtain and maintain a license from Oregon Psilocybin Services (OPS) for psilocybin testing laboratories and the Oregon Liquor and Cannabis Commission (OLCC) for cannabis testing laboratories as criteria for maintaining ORELAP accreditation. 
  • Clarifies testing of pre-roll joints.
  • Sets minimum sample material retention for thirty (30) days for cannabis testing laboratories.
  • Details on how to report PT results, including maximum limit of quantitation (LOQ) for PTs based on existing LOQs for compliance samples.
  • For links and more information, visit ORELAP's Rules and Statutes.

Accreditation for the Cannabis Testing Industry

Find Accredited Cannabis Laboratories

ORELAP Accredited Laboratories

ORELAP Rules and Statues

Sampling Protocols