Controlled Substances Act mostly illegal at the federal level Federal Marijuana Laws illegal Americans for Safe Access illegal at the federal level illegal at the federal level illegal at the federal level still illegal federally illegal Controlled Substances Act (CSA) (21 U.S.C. § 811) in 1970 lack of initiative on the part of the Federal authorities Federal Marijuana Laws federal laws regarding the legality of marijuana 44 states legalizing some form of marijuana still illegal illegal at the federal level there is the Federal government conflicts between state and federal laws illegal at the federal level Americans for Safe Access enables federal minimum prison sentences illegal at the federal level lack of initiative on the part of the Federal authorities http://www.safeaccessnow.org/federal_marijuana_law Federal Marijuana Laws Americans For Safe Access site enables federal minimum prison sentences minimum penalty federal level CARERS Act of 2015 An in-depth review of federal standards in the U.S. federal status of cannabis Controlled Substances Act of 1970 Controlled Substances Act (CSA) (21 U.S.C. § 811) in 1970 illegal at the federal level still illegal remains federally illegal federal government does not recognize medical marijuana