I am spearheading a group focused on using hemp in animal feed. Imported Canadian hemp oil is tested for THC using the AFVAN-SLMF-0029 standard and the US testing method for cannabinoids is AOAC official method 2018.11. Separate standards also exist for hemp seed protein powder. Based on the information I have gathered from predominant GLP labs in the USA, the AOAC methodology places the limit of detection (LD) at just over 8 PPM (w/w) for most common cannabinoids (>16 PPM for Δ8-THC) for oil and seed. AOAC methods are estimated to provide a level of quantification of about 25 ppm (w/w). Also, LQ in a dry extruded feed product is estimated to be 50 ppm (w/w) using AOAC methodology.

If LD is not < 10 ppm (w/w) then can a claim of zero THC be made and if not, what are the implications for interstate commerce where state laws outlaw THC at any level?

Regards,

Steve McGarrah
High Plains Nutrition, LLC