Drug policy of California refers to the policy on various classes and kinds of drugs in the U.S. state of California. Cannabis possession has been legalized with the Adult Use of Marijuana Act, passed in November 2016, with recreational sales starting January of the next year. With respect to many controlled substances, terms such as illegal and prohibited do not include their authorized possession or sale as laid out by applicable laws.

On November 4, 2014, voters approved Proposition 47, which, among other things, reduced drug possession for personal use to a misdemeanor (except possession of more than one ounce of marijuana).St. John, Paige, Marisa Gerber. Prop. 47 jolts landscape of California justice system. Los Angeles Times. November 5, 2014. Retrieved November 6, 2014.

Specific drugs Alcohol Alcohol is legal for adults 21 and over in the State of California to possess, purchase, and consume. Sale of alcohol is regulated and a license must be granted by county authorities before a store, bar, or restaurant may sell alcohol.

Driving a motor vehicle while intoxicated on alcohol is a misdemeanor which carries a penalty of up to one year in the county jail. Subsequent offenses may be charged as a felony under certain circumstances. In practice driving a motor vehicle while intoxicated will result in probation for first offenses, along with hefty fines, alcohol education, and community service. Subsequent offenses usually result in a small amount of jail time along with probation. Public intoxication on alcohol is a misdemeanor under state law and also under most municipal ordinances. Public intoxication on alcohol is often not prosecuted and the offender is released after sobering up in jail. Sometimes, depending on criminal history, those convicted of public intoxication may serve very small jail sentences.

The Department of Alcohol Beverage Control (ABC) is the Californian authority over alcohol licenses in the state. The department has outlawed the sale of alcohol to a "habitual drunkard" or any "obviously intoxicated person". Selling alcohol to a habitual drunkard or obviously intoxicated person is a misdemeanor under Section 25602 of the Business and Professions Code. The department also outlaws the sale or consumption of alcohol on licensed premises between 2 a.m. and 6 a.m. Selling or allowing the consumption of alcohol on licensed premises between these hours is a misdemeanor under Section 25632.

Amphetamines Amphetamine, methamphetamine and dimethylamphetamine are Schedule 2 on the California Uniform Controlled Substances Act, which is part of the California Health and Safety Code. Methamphetamine is illegal for possession under Health and Safety Code 11377. Methamphetamines are illegal for possession for sale under Health and Safety Code 11378. In practice those without prior criminal histories convicted of HS 11377 will be granted PC1000, Proposition 36, or felony probation. Those convicted of HS 11378, possession of amphetamines for sale, may receive anything from probation up to 4 years in prison. Harsher sentences are given for those convicted of manufacturing amphetamines such as methamphetamine.

Cannabis

All forms and preparations of cannabis, as well as its derivative tetrahydrocannabinol are Schedule 1 on the California Uniform Controlled Substances Act. The first cannabis prohibition laws in California were passed in 1913. In the 1972 California November elections an initiative titled Proposition 19, which would have legalized cannabis, was on the ballot. It failed to pass, with 66.5% voters voting "No" and 33.5% voting "Yes." In 1976 the passage of the Moscone Act changed small-scale possession of marijuana from a felony to a misdemeanor.

On November 5, 1996, 56% of voters approved Proposition 215 (also known as the Compassionate Use Act of 1996), taking effect the following day and removing state-level criminal penalties on the use, possession, and cultivation of marijuana by patients that "would benefit from medical marijuana" and possess a "written or oral recommendation" from their physician. Conditions typically covered by the law include arthritis, cachexia, cancer, chronic pain, HIV or AIDS, epilepsy, migraines, and multiple sclerosis. Initially, there existed no set limits regarding the amount of marijuana patients could possess or cultivate. California Senate Bill 420, also known as the Medical Marijuana Program Act, was signed into law in October 2003 and took effect on January 1, 2004, establishing the amount of medicinal marijuana patients and/or their caregivers may grow and possess. The bill allowed for no more than 8 ounces of dried marijuana and/or 6 mature (or 12 immature) plants, unless larger quantities were recommended by a physician. Senate Bill 420 also required the California Department of State Health Services to establish a voluntary patient registry and issue identification cards to patients, though no such registry has been established to date.

In February 2009, Tom Ammiano introduced the Marijuana Control, Regulation, and Education Act, the first bill attempting to legalize the sale and use of marijuana in California. If passed and signed into law, marijuana would be sold and taxed openly to adults age 21 and older in a manner similar to alcohol.

In September 2010, then Governor Arnold Schwarzenegger signed SB 1449 into law, which reduced possession of under 1 ounce of cannabis from a misdemeanor to a civil infraction. The law went into effect January 1, 2011.

In 2010, Proposition 19, titled the "Regulate, Control, and Tax Cannabis Act of 2010", qualified for the November California ballot. It failed to pass. If it had passed, the initiative would have legalized the recreational use of cannabis and its related activities in the State of California. It would have also allowed local governments to regulate and tax the newly created cannabis market.

In the November 2016 election, voters passed an initiative legalizing recreational use of marijuana, the Adult Use of Marijuana Act. Following the Act, California has been pioneering the development of an appellations of origin program for cannabis products.

The Adult Use of Marijuana Act went into effect on January 1, 2018. Adults 21 and over in California may now possess up to one ounce of dried marijuana or eight ounces of concentrated cannabis and can grow up to six marijuana plants for personal use subject to certain restrictions. It is still illegal to sell or possess marijuana with intent to sell without both a state and local license. Despite its legality in California, marijuana is still considered a Schedule 1 drug under the United States Controlled Substances Act. This means that federal prosecutors are allowed to decide to arrest and prosecute cannabis users and sellers who are in accordance to California law but not federal law.

Cocaine/Crack Cocaine, crack cocaine, coca leaves and all other forms of cocaine are Schedule 2 on the California Uniform Controlled Substances Act. Cocaine is illegal to possess under California Health and Safety Code 11350. Possession under HS 11350 was formerly a prosecuted as a misdemeanor or felony with up to 3 years in prison, but Proposition 47 made simple possession for personal use a misdemeanor only. In practice, those charged with cocaine possession will in most cases be given an opportunity to plead guilty and receive no jail time under PC 1000, Prop 36, or felony supervised probation. People with prior records and especially those with prior drug possession records will often be given small jails terms such as 30, 90, or 180 days, along with felony probation.

Possession for sale of cocaine salt ("powder") is prohibited under Health and Safety Code 11351; "crack" cocaine under 11351.5. Penalties for possession for sale of cocaine salt are 2, 3, or 4 years in the state prison; for "crack" cocaine, 3, 4 or 5 years. Health and Safety Code 11352 pertains to selling or providing cocaine trafficking and provides for imprisonment for 3, 4 or 5 years. Those convicted of possession for sale HS 11351 or sale/trafficking under 11352 will often serve from 1 year in county jail to a sentence of 2–5 years in state prison, based upon the quantities of drugs, the extent of their criminal history, and the jurisdiction in which they are prosecuted. Those convicted of selling cocaine with prior related offenses may serve many years in the state prison, since qualifying prior convictions may add 3 years per conviction to the term provided for the conviction itself. Various enhancements exist in the California Health and Safety Code for dealing cocaine which may result in very long prison terms, such as selling to a minor, selling in a school zone, and selling large quantities of the drug.

Heroin and other opiates Heroin is Schedule 1 on the California Uniform Controlled Substances Act. Heroin is illegal to possess under California Health and Safety Code 11350. Possession under HS 11350 can be prosecuted as a misdemeanor or felony with up to 3 years in prison. Possession for sale is illegal under Health and Safety Code 11351. Penalties for possession for sale is 2, 3, or 4 years in the state prison. Health and Safety Code 11352 pertains to sale/trafficking with increased penalties. Those convicted of possession for sale HS 11351 or sale/trafficking under 11352 will often serve from 1 year in county jail, or 18-month sentence in the state prison based upon the quantities and extent of their drug dealing if it is their first offense. Those convicted of selling cocaine with prior related offenses may serve up to 4 years in the state prison.

Raw opium, opium poppy and straw, as well as its derivatives morphine, oxycodone, hydrocodone and codeine are Schedule 2 on the California Uniform Controlled Substances Act.

Ketamine Ketamine is Schedule 3 on the California Uniform Controlled Substances Act. Ketamine is illegal under Health and Safety Code 11377 HS. It is a misdemeanor to possess and punishment includes 6 months in jail and up to a $1,000 fine. Those charged with ketamine possession will in most cases be given an opportunity to plead guilty and receive no jail time under PC 1000, Prop 36, or felony supervised probation. People with prior records and especially those with prior drug possession records will often be given small jails terms such as 30, 90, or 180 days, along with felony probation. Ketamine is illegal to possess with intent to sell or actual sale under Health and Safety Code 11379.2 HS. The charge can be a misdemeanor or a felony. Those convicted of this offense as a misdemeanor, you face up to one-year in a county jail and a maximum $1,000 fine. If you are convicted of this offense as a felony, you face 16 months, or two or three years in the California state prison and a maximum $10,000 fine.

Recently, in People v. Davis, CSC Case No. 198434, the California Supreme Court ruled that possession of ecstasy (MDMA or methylenedioxy-methylamphetamine) without additional evidence is insufficient to sustain a conviction for possession of a controlled substance (11350 (a) HS).

MDMA (ecstasy) 3,4-Methylenedioxymethamphetamine (MDMA) is Schedule 1 on the California Uniform Controlled Substances Act. MDMA is illegal for possession under Health and Safety Code 11377. MDMA is illegal for possession for sale under Health and Safety Code 11378. In practice those without prior criminal histories convicted of HS 11377 will be granted PC1000, Prop 36, or felony probation. Those convicted of HS 11378, possession of MDMA for sale, may receive anything from probation up to 4 years in prison. California passed increased penalties for "hard drugs" with prop 36, but MDMA and LSD are exempt from those penalty increases.

Nicotine and tobacco products