Decriminalizes possession, cultivation, transportation, distribution, and use of marijuana or hemp. Provides persons convicted or serving time for non-violent offenses involving marijuana be immediately released from prison, jail, parole, or probation, and be eligible to have their convictions erased. Provides no permit, license, or tax be required for non-commercial cultivation, transportation, distribution, or consumption of marijuana. Allows doctors to prescribe or recommend marijuana to patients, regardless of age. Prohibits testing for marijuana for employment or insurance purposes. Bars state from aiding enforcement of certain federal marijuana laws. Summary of estimate by Legislative Analyst and Director of Finance of fiscal impact o...