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US (OR): New cannabis testing requirements start March 1 for heavy metal, contaminants

The State of Oregon has new cannabis testing requirements starting next week.

The Oregon Liquor and Cannabis Commission (OLCC) is sharing information from the Oregon Health Authority (OHA) about new cannabis tests required for both medical and adult use markets starting March 1, 2023 for heavy metal and microbiological contaminants.

OLCC says OHA writes rules for testing cannabis that affect both the medical and adult-use cannabis markets, found in Chapter 333 Divisions 7 and 64, in full at It says any cannabis item harvested or manufactured on or after March 1, 2023, need to be tested for heavy metals and microbiological contaminants in accordance with the rule.

The heavy metals compliance test will look for arsenic, cadmium, lead, and mercury, and the microbiological contaminants compliance test will look for pathogenic Aspergillus flavus, A. fumigatus, A. niger and A. terreus, Shiga toxin-producing Escherichia coli and Salmonella species.


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