Between 1978 and 1982, 32 states acknowledged the medical benefits and attempted to make cannabis available, but possession remains a federal offence. Among the states where marijuana is legally used for medical purposes are California, Oregon, Washington, Alaska, Arizona, and Nevada.
between 1978 and 1982 32 states acknowledged the medical benefits and attempted to make cannabis available but possession remains a federal offence among the states where marijuana is legally used for medical purposes are california oregon washington alaska arizona and nevada