New York’s Office of Cannabis Management (OCM) published a revised set of laboratory testing limits effective February 2026, updating standards that govern what levels of contaminants are permissible in cannabis products sold in the state’s licensed market. The revisions reflected both evolving scientific understanding of cannabis-specific risks and lessons learned from the lab fraud and compliance failures that had affected the New York market in 2025 and early 2026.
Key Changes to Aspergillus Standards
The February 2026 revision brought greater specificity to how Aspergillus testing is interpreted and reported. Following the discovery that Keystone State Testing New York had issued unreliable Aspergillus results for dozens of product lots, the OCM tightened requirements around how labs must document and validate their Aspergillus testing methodology. Labs are now required to demonstrate proficiency in Aspergillus detection through blind sample testing before being permitted to issue compliance results for New York licensed products.
Broader Contaminant Limit Revisions
The February update also revised action limits for several other contaminant categories. Total yeast and mold action limits were adjusted to better reflect the potency of the state’s Aspergillus-specific requirements. Mycotoxin limits were updated based on emerging research on aflatoxin accumulation in cannabis, and the OCM clarified its approach to residual solvent limits for specific concentrate product types.
Why Compliance Windows Keep Narrowing
New York’s February 2026 revision is part of a consistent pattern visible across every mature regulated cannabis market: testing requirements get more specific, more stringent, and more rigorously enforced over time. What passes today may not pass in 18 months. Cultivators who build their quality assurance programs around current minimums are perpetually at risk of being caught by the next update.
Investing in proactive contamination prevention — rather than relying on the compliance floor staying where it is — is the only sustainable strategy for operations that intend to remain viable as regulatory environments continue to evolve.
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