Hemp farming became federally legal as part of the 2018 Farm Bill.  This allowed the regulated farming of hemp at the federal level. 

In December of 2018, the 2018 Farm Bill was signed into law. It removed hemp, defined as cannabis (Cannabis sativa L.) and derivatives of cannabis with extremely low concentrations of the psychoactive compound delta-9-tetrahydrocannabinol (THC) (no more than 0.3 percent THC on a dry weight basis), from the definition of marijuana in the Controlled Substances Act (CSA). (https://www.fda.gov/news-events/congressional-testimony/hemp-production-and-2018-farm-bill-07252019)

Hemp History

Hemp boasts an extensive agricultural legacy spanning more than 8,000 years. Among its notable historical figures, George Washington stands out as a hemp cultivator who tended to this crop on his Mount Vernon Farm. Distinguished individuals of early American history such as Benjamin Franklin, Thomas Jefferson, James Madison, and Henry Clay also recognized the value of hemp and incorporated it into their lives.

Hemp Farming in the late 1800s

Hemp farming
George Washington Hemp Farmer

The Marijuana Tax Act of 1937  essentially criminalized all cannabis products including hemp.  Hemp has now been removed from the schedule 1 classification and is now federally legal in all 50 states in the United States. Now that hemp is a legal crop many farmers are entering the hemp market.  Hemp is classified as less than .03% delta 9 THC levels. There are currently moves towards raising this to 1% as an amendment by Sen. Rand Paul.  For now, the federal level means that hemp has a very low amount of THC that does not produce any psychoactive properties.  CBD in the main derivative from hemp.  CBD levels in hemp can have beneficial properties that offer possible benefits for pain, sleep, and anxiety.

Hemp was even seen on the US $10 Bill in 1914.  The bill was even printed on hemp.