On December 20, 2018, the Agriculture Improvement Act of 2018 (popularly known as the 2018 Farm Bill), was signed into law. It legalizes the cultivation and sale of hemp at the federal level, effective January 1, 2019; not just stalk and seeds but ALL parts of the cannabis sativa L plant. The bill specifically de-schedules all derivatives, extracts, cannabinoids, and seeds of hemp as long as those portions remain below 0.3% THC. In short, hemp cannot get you high – it must not contain more than 0.3% THC, the compound in the plant most commonly associated with getting a person high.
For decades, federal law did not differentiate hemp from other cannabis plants, all of which were effectively made illegal in 1937 under the Marihuana Tax Act, and formally made illegal in 1970 under the Controlled Substance Act – the latter banned cannabis of any kind. The 2018 Farm Bill allows for the transfer of hemp-derived products across state lines for commercial or other purposes. It also puts no restrictions on the sale, transport, or possession of hemp-derived products, so long as those items are produced in a manner consistent with the law.