Cannabis Testing Labs in Maine
4 licensed cannabis testing laboratories in Maine. All labs listed are licensed by Office of Cannabis Policy (OCP).
Data source: Office of Cannabis Policy
Maine cannabis testing overview
Maine has a growing cannabis market with monthly data exports available from the Office of Cannabis Policy. All cannabis products sold in Maine must be tested for potency, contaminants, microbials, and (for concentrates) residual solvents by a lab licensed under Office of Cannabis Policy (OCP). Look for ISO/IEC 17025 accreditation and currently valid state licensure when choosing a lab.
CATLab
Eliot, Maine
MCR Labs Maine
Gardiner, Maine
Nelson Analytical
Kennebunk, Maine
Nova Analytic Labs
Portland, Maine
Frequently Asked Questions
How many cannabis testing labs are in Maine?+
There are 4 licensed cannabis testing laboratories in Maine listed on CannaBizGuide. All labs are regulated by Office of Cannabis Policy (OCP) and data is sourced from Office of Cannabis Policy. The number of licensed labs can change as new facilities receive accreditation or existing labs lose their license.
What tests are required for cannabis products sold in Maine?+
Maine cannabis products must typically be tested for cannabinoid potency (THC, THC-A, CBD, CBD-A and often other cannabinoids), terpene profile (sometimes optional), pesticides, heavy metals, residual solvents (for concentrates), microbial contaminants, mycotoxins, and moisture content. Office of Cannabis Policy (OCP) sets the specific analyte panels and action limits. Retest rules, homogeneity sampling, and label claim tolerances are also state-specific. See our testing requirements by state guide for the current ME panel.
How much does cannabis testing cost in Maine?+
Full-panel compliance testing in Maine typically ranges from a few hundred to over a thousand dollars per sample depending on matrix type (flower vs concentrate vs edible), panel scope, and turnaround. Bulk pricing and volume discounts are common for multi-state operators. R&D testing (not for compliance) is usually less expensive. Get quotes from multiple labs and confirm they can test ALL required matrices before committing.
What accreditations should a Maine cannabis lab have?+
At minimum, look for ISO/IEC 17025 accreditation from a recognized body (A2LA, PJLA, ANAB, or similar). Maine may also require specific state-level certification or licensing from Office of Cannabis Policy (OCP). Some operators also look for ORELAP, EMLAP, or TNI certifications, particularly for specific analyte categories. Verify accreditation status directly with the accrediting body - do not rely on lab marketing alone.
What is the typical cannabis testing turnaround time in Maine?+
Standard compliance testing turnaround is usually 5-10 business days from sample receipt to reported Certificate of Analysis (COA). Rush service (48-72 hours) is available at most labs for a premium. Complex matrices (distillates, edibles with unusual excipients) and retest scenarios often take longer. Plan testing windows into your release schedule, especially around regulated harvest or batch-release deadlines.
How do I read a cannabis Certificate of Analysis (COA)?+
A cannabis COA reports pass/fail for each required analyte category plus quantified values (potency % and contaminant levels). Key things to check: batch number, sample intake date, testing methodology references (LC-MS/MS, GC-MS, qPCR), and that the lab's name and accreditation number match a currently-licensed lab. Beware of COAs from unaccredited or out-of-state labs. See our How to Read a Cannabis COA guide for a detailed walkthrough.