While marijuana remains illegal at the federal level per the 1970 Controlled Substances Act, the US has become a patchwork of state-determined laws pertaining to the drug. Some states have legalized recreational marijuana, others allow medicinal use and/or CBD oil, a few states have merely decriminalized the plant, and a handful follow the federal guidelines.
States differ widely in how marijuana is regulated.
Five forms of marijuana legalization have been implemented across the country:
