As states legalize marijuana, the debate continues as to whether or not cannabis should be legalized on a national level. In May 2016, the Pennsylvania Medical Marijuana Act went into effect. This law allows marijuana to be given to people with terminal illness or with at least one of 17 medical conditions. As of May 2018, anyone in opioid-withdrawal treatment qualifies for state-regulated cannabis use. A patient must be under the ongoing care of a physician licensed to certify that he/she will benefit from cannabis use.