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Cannabis Testing

A2LA is the leader in cannabis accreditation, offering accreditation to laboratories performing analytical testing of cannabis and cannabis-derived products, such as flowers, concentrates, butters/waxes, drinks, tinctures, oils and edibles, as well as hemp and hemp-derived products.

A2LA’s Cannabis Testing Laboratory Accreditation Program was developed to promote confidence to users and regulators with regard to the safety of medical and recreational marijuana through the accreditation of cannabis testing laboratories and (when relevant) inspection bodies. Appropriate testing is critical to demonstrate that these products do not contain harmful levels of contaminants or adulterants and are safe for public consumption.

Specific testing may include, but is not limited to, the following:

  • Cannabinoid testing and content (CBC, CBD, CBDa, CBG, CBN, THC, THCa, THCv, etc.)
  • Terpene profile
  • Pesticides/fungicides/plant growth regulators
  • Residual solvents
  • Heavy metals
  • Microbiological contaminants (mold, insects, bacteria, etc.)

Laboratories can also be accredited for the sampling associated with subsequent testing. Click here for more information.

A2LA can accredit laboratories for hemp testing prior to cannabis being legalized in their state or in lieu of/addition to cannabis testing.

Confidence in the laboratories that perform this testing, and assurance in the test results, is possible through accreditation to the ISO/IEC 17025 standard. The ISO/IEC 17025 standard is non-prescriptive and flexible, allowing the organization maximum flexibility in determining what works best for their business needs.

Program Requirements

Cannabis testing laboratories are accredited to ISO/IEC 17025 and any additional requirements that may be specified by the state in which the laboratory resides or does business. Cannabis testing laboratories may select one of two tracks for A2LA accreditation. The accreditation tracks both provide independent, third-party accreditation assessments crafted to serve both the medical cannabis and recreational adult-use markets. These tracks are as follows:

  • ISO/IEC 17025 as the primary framework, along with any additional, state-specific requirements
  • ISO/IEC 17025 and the additional accreditation requirements derived from the Americans for Safe Access (ASA)Patient Focused Certification (PFC) Program for testing laboratories. (A2LA Document R243 – Contact us to request a copy of this requirements document)

The PFC Laboratory Operations requirements are constructed in accordance with the Recommendations to Regulators for Cannabis Operations, a guide developed by the Cannabis Committee for the American Herbal Products Association (AHPA). An assessment to these additional requirements is voluntary. The additional requirements include security, personnel training, sample receipt, chain of custody, handling and disposal, and data review.

Please contact us for more information on specific state requirements for testing to determine the minimum cannabis testing required.

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With C4’s analytical testing services, cannabis businesses gain the confidence that their medications are safe, reliable, and consistent, while patients gain the confidence to ask hard questions and hold the companies they buy from to a higher standard.

Test results are delivered through Confident Cannabis, a simple online system for storing, tracking, and searching past reports. Our team also provides a full consultation and analytical review of the results free of charge to help translate your data into easy-to-understand information you can use to make informed decisions. (Pediatric patient consultations are provided free of charge.)

In addition to testing, C4 works with manufacturers on product development and optimization, and collaborates with cultivators on grow analytics. Services include mold culture testing, viral detection with sentinel plants, and comprehensive analysis of environmental conditions.

All microbial analyses report CFU’s (colony forming units).

Day zero is the day that the order arrives at our laboratory. Day one begins the next business day for the purposes of determining turn around time. Turn around time may vary depending upon the volume of laboratory samples we currently have, unless you are a member of our Chronic Customer Program.