Medical Use of Marijuana Program product testing

Registered Independent Testing Laboratories

The following is a list of Independent Testing Laboratories (ITL) registered with the Department of Public Health (DPH) to conduct testing of marijuana for medical use for Registered Marijuana Dispensaries (RMD) in Massachusetts. Please note that testing capabilities vary by ITL. Contact the ITL directly to learn about its testing capabilities.

ITL	ITL Contact
ProVerde Laboratories, Inc. 420 Fortune Blvd Milford, MA 01757	Chris Hudalla [phone]
MCR Labs, LLC 85 Speen St. Framingham, MA 01701	Michael Kahn [phone]
CDX Analytics 39 Norman St. Salem, MA 01907	Brian Strasnick [phone]

If you have questions about the registration of ITLs, please email [e-mail].

Additional Resources

Apply for an Independent Testing Laboratory Certificate of Registration

Guidance for Independent Testing Laboratories

ITLs are responsible for being familiar with the following guidance and the DPH Testing Protocols. Please review all guidance documents and Protocols in full. 

• Quality Assurance Program Plan (QAPP) for Analytical Testing Laboratories
• Independent Testing Laboratory Guidance for Third Party ISO Accreditation
• Policy on Contamination Notification Requirement (DOC) 
• Policy on Laboratory Registration (DOC)

Guidance related to product testing for Registered Marijuana Dispensaries

• Policy on Contamination Notification Requirement (DOC)
• Pesticide Use Policy

DPH Testing Protocols

• Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries
  • Exhibit 1: Overview of Medical Marijuana Production
  • Exhibit 2: Contaminants of Concern and Testing Requirements for Medical Marijuana Products
  • Exhibit 3: Representative Sample Program Design
  • Exhibit 4: Analysis Requirements and Recommended Limits for Metals in Finished Medical Marijuana Products
  • Exhibit 5: Minimum Analysis Requirements for Residues of Pesticides and Plant Growth Regulators Commonly Used in Cannabis Cultivation
  • Exhibit 6: Analysis Requirements for Microbiological Contaminants and Mycotoxins in Medical Marijuana Products
  • Exhibit 7: Concentration Limits for Residual Solvents
  • Exhibit 8: Actions in Response to Laboratory Analytical Results
• Protocol for Sampling and Analysis of Environmental Media for Massachusetts Registered Medical Marijuana Dispensaries (DOC)
  • Exhibit 1: Sampling and Analysis Requirement Flow Chart
  • Exhibit 2: Soils/Solids Sampling Frequency and Analyses
  • Exhibit 3: Water Sampling Frequency and Analyses
  • Exhibit 4: Analysis Details – Soil and Solid Growing Media
  • Exhibit 5: Analysis Details – Water
  • Exhibit 6: Actions for Environmental Media Analysis Prior to Cultivation
  • Exhibit 7: Action for Ongoing Monitoring of Environmental Media