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Cannabis Testing Laboratories

All marijuana items and industrial hemp-derived vapor items must be sampled and tested according to OAR 333-007-0300 to 333-007-0500 and 333-064-0100 to 333-064-0130.

Information for Laboratories

ORELAP accreditation

For information about laboratory accreditation for testing Cannabis:


Sampling Protocols

Laboratory reporting requirements

Laboratories that perform testing must notify the overseeing state agency if any of the following is found during testing:

  • Any failed test result (except failed water activity)
  • Any pesticide test result with a "detected" level

Failed test results must be reported to the overseeing state agency by the testing laboratory within 24 hours of completion of the laboratory's data review and approval procedures. Results must be reported at the same time or before reporting to the grower or processor. If tests are sub-contracted out by a laboratory, the primary laboratory is responsible for reporting results to the overseeing state agency.

For medical registrants, notify OMMP of failed test results by submit the following to  

OMMP.Labs@dhsoha.state.or.us within 24 hours:


For OLCC licensees connect with OLCC at OLCC.Labs@oregon.gov

Laboratory Control Standards

Microbiological Testing

  • Run a negative control in accordance with TNI Standard requirements to demonstrate the procedure is free of microbiological contaminants that prevent accurate testing.
  • Run a positive control in accordance with TNI Standard requirements to demonstrate acceptable performance of the procedure.  Acceptable performance of the positive control means accurate identification and quantitation of all regulated analytes.

Chemistry Testing

  • Run a method blank in accordance with TNI Standard requirements to demonstrate the procedure is free of contaminants at or above the limit of quantitation.
  • Run a laboratory control standard (LCS) in accordance with TNI Standard requirements to demonstrate acceptable performance of the procedure.  Acceptable performance of the LCS means percent recovery for all regulated analytes are within the limits specified in Exhibit C, Table 1.
  • Analyze duplicate samples with a precision limit of 10 percent RPD, if duplicates are required as specified in OAR 333-007-0360 and analyze all replicate samples with a precision limit of 10 percent RSD, if replicates are required as specified in OAR 333-007-0360.


Approved Testing Laboratories

Laboratories used for testing must be both accredited by ORELAP and licensed by OLCC.

A laboratory must appear on both lists and may only perform testing and/or sampling according to their accreditation.