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As established in House Bill 396 signed during the 2021 legislative session, hemp and substances derived from hemp are now approved for use in commercial feed for pets, specialty pets, and horses in Montana, so long as they do not contain more than 0.3% tetrahydrocannabinol, or THC.

The Montana Department of Agriculture will regulate these new parameters for feed, feed ingredients of hemp, and substances derived from hemp in accordance with Montana’s Commercial Feeds Act and the Hemp and Cannabidiol Policy for Use in Animal Feed that is now available on the MDA website. Because the use of hemp or hemp-derived products in animal feed or feed supplements is not yet approved at the federal level, there are some important stipulations to abide by.

Currently, hemp and substances derived from hemp are not yet generally recognized as safe (GRAS) or approved as food additives under the Food, Drug, and Cosmetic Act (FD&C Act). This means that livestock fed hemp in Montana cannot enter interstate or intrastate commerce as the animals and meat are considered adulterated under the FD&C.

In addition to pets and specialty pets, horses are the only livestock species approved for hemp in animal feed. Approval for hemp in animal feed for other livestock, such as cattle, sheep, swine, and poultry, is contingent on approval from the Food and Drug Administration’s Center for Veterinary Medicine (CVM).

No CBD products, including CBD oil and industrial hemp seed oil containing CBD are allowed in pet, specialty pet, and horse feed in Montana. Only hemp or substances derived from cannabis with no greater than 0.3% THC, including but not limited to hemp seed, hemp seed meal, and hemp seed oil are permitted for use following the signing of HB 396.

The Montana Department of Agriculture is serving Montana Agriculture and growing prosperity under the Big Sky. For more information, visit


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