Mary Jane. Pot. Weed. Marijuana. Whatever you call it, cannabis use has been prohibited in the NBA since the league enacted an anti-drug policy in 1983, which has a list of 160 banned substances. According to the current collective bargaining agreement a player that tests positive for marijuana will be required to enter the Marijuana Program, a second offense results in a $25,000 fine and re-entry into the Marijuana Program, a third positive test will result in re-entry in th