2000 California Proposition 36

California Proposition 36, the Substance Abuse and Crime Prevention Act of 2000, was an initiative statute that permanently changed state law to allow qualifying defendants convicted of non-violent drug possession offenses to receive a probationary sentence in lieu of incarceration. As a condition of probation defendants are required to participate in and complete a licensed and/or certified community drug treatment program.

Source: Wikipedia — 2000 California Proposition 36 (CC BY-SA 4.0)