ANAB provides accreditation for laboratories that perform analytical testing of cannabis and cannabis-derived products, including oils, edibles, drinks, concentrates, flowers, butters, and waxes, and hemp and products derived from hemp. Testing of cannabis products is necessary to demonstrate that they are safe for consumption and free from harmful levels of contaminants. 


Video: Accreditation Manager Matt Sica describes the five-step accreditation process and discusses how to prepare for a successful outcome, documents labs are required to submit for accreditation, and the main challenges cannabis labs face.

ANAB provides accredits cannabis testing laboratories to ISO/IEC 17025 for a variety of relevant tests, including:

  • Cannabinoid testing and content (e.g., THC, THCV, CBD, CBDV, CBG, CBC, and CBN)
  • Terpene profile 
  • Pesticides 
  • Microbiological contaminants  such as mold, and bacteria
  • Heavy metals
  • Residual solvents

Demand for testing laboratories is growing as many states have legalized medical and adult-use recreational marijuana. ANAB can accredit your lab to meet state regulatory requirements.

ANAB's cannabis testing laboratory accreditation program provides independent, third-party accreditation assessments serving both the medical cannabis and adult-use recreational markets. The program uses ISO/IEC 17025 as the base standard along with any relevant state regulatory requirements.
Cannabis Process Stesp-20190306

Absolute Standards, an ISO/IEC 17043 accredited proficiency testing provider, offers CRMs and proficiency tests for THC, total THC, and terpenes that are in line with medical marijuana method scopes to include GC-FID, LC PDA, GC-MSD, and LC-MSD.

NSI Lab Solutions, an ISO/IEC 17043 accredited proficiency testing provider, offers CRMs and proficiency tests for cannabis microbiology with both qualitative and quantitative panels for APC, coliform/E.coli, yeast/mold and Enterobacteriaceae, STEC, and salmonella.

For more information about ANAB cannabis testing laboratory accreditation to ISO/IEC 17025 or to obtain a quote, contact Roger Muse at or 414-501-5455.

ISO/IEC 17025 Documents (including FA 2004, MA 2100, AR 2250, and other documents)


Standards Week Forum Banner

ANSI will host a Legal Issues Forum on Standardization and the Cannabis Industry on Wednesday, November 6, from 2:00–5:00 pm free of charge as part of World Standards Week 2019.

Although cannabis remains illegal at the federal level, 33 states and the District of Columbia have legalized cannabis for medicinal use, and 11 states have legalized its recreational use. With the continued growth of the cannabis industry and increasing public and political support for broader legalization, there is a growing need for standardization activities that support public health and safety. The forum will examine the legal implications, challenges, and opportunities for standards developing organizations and conformity assessment bodies in light of the shifting legal landscape.

Note: As part of ANSI’s World Standards Week 2019 series of events, the Forum will be held at the FHI 360 Conference Center in Washington, DC. In the past, ANSI offered Continuing Legal Education (CLE) credits for this conference. If approved again this year, ANSI will issue an announcement and advise all registrants to date so that they can take advantage of CLE credits as appropriate.