War on Drugs The Drug Enforcement Administration (DEA) refused to issue permits for the legal cultivation of hemp and maintained that, since industrial hemp is the same plant species as banned cannabis (despite its lower THC yield), both were prohibited under the Controlled Substances Act. Quickly, hemp became famous as an unlikely war material. The United States had banned hemp, but it imported it from the Philippines. However, the Japanese invasion of the Philippines in 1942 cut off the supply.
Both the United States and Canada had no option but to lift the restrictions temporarily. Until the end of the war, farmers in both countries were allowed to grow hemp. They needed special permits and could only grow it to contribute to the war effort. The perceived health benefits of CBD, which are mostly unproven, have boosted hemp production in the U.S.
In the U.S. and around the world. It is true that Article 12619 of the Agricultural Act removes hemp-derived products from their category in Schedule I under the Controlled Substances Act, but the legislation does not legalize CBD in general.