D.C. Mun. Regs. tit. 22-C, § 6507
6507.1 Cultivation centers and manufacturers shall test all products for mycotoxin in accordance with this section before distributing, selling, or otherwise transferring the product to an internet retailer, manufacturer, or retailer.
6507.2 The testing laboratory shall analyze at minimum 0.5 grams of the representative sample of medical cannabis and medical cannabis products to determine whether mycotoxins are present.
6507.3 The testing laboratory shall report the result of the mycotoxins in unit micrograms per gram (µg/g) in the testing results and indicate “pass” or “fail” in the result report.
6507.4 The sample shall be deemed to have passed mycotoxin testing if both the following conditions are met:
(a) Total of aflatoxin B1, B2, G1, and G2 does not exceed 20 µg/kg of substance; and
(b) Ochratoxin A does not exceed 20 µg/kg of substance.
6507.5 If the sample fails mycotoxin testing, the batch from which the sample was collected fails mycotoxin testing and shall be deemed adulterated.
SOURCE: Final Rulemaking published at 73 DCR 002136 (February 20, 2026).