In 1996 California voters made the state the first in the nation to allow medical marijuana. Proposition 215 is still the legal foundation for every medical cannabis patient in California today.
Proposition 215, the Compassionate Use Act of 1996, added section 11362.5 to the California Health and Safety Code. It protects seriously ill patients and their primary caregivers from state prosecution for possessing or cultivating cannabis for personal medical use with a physician's recommendation, and it protects physicians who make those recommendations. This page covers what the measure says, how courts and later laws such as SB 420, MAUCRSA, and Proposition 64 shaped it, and what it means for patients now.
Proposition 215 was a citizen initiative led by San Francisco activist Dennis Peron and a group of co-authors that included patients, physicians, and advocates. It appeared on the November 5, 1996 ballot and passed with about 55.6 percent of the vote, roughly 5.38 million yes votes to 4.30 million no votes.
Because it was enacted by voters, the Compassionate Use Act can only be amended by another vote of the people or as the initiative itself allows. That limit on the Legislature has shaped how later laws were written and interpreted.
Section 11362.5 states its purpose as ensuring that seriously ill Californians have the right to obtain and use marijuana for medical purposes where a physician has determined that the person's health would benefit. It names cancer, anorexia, AIDS, chronic pain, spasticity, glaucoma, arthritis, migraine, and any other illness for which marijuana provides relief.
Prop 215 uses the word recommendation because federal law did not allow physicians to prescribe marijuana. In Conant v. Walters (2002), a federal appeals court held that physicians have a First Amendment right to discuss and recommend medical marijuana.
Prop 215 was short and left many practical questions open. Later laws filled the gaps while leaving the original protections in place.
Created the voluntary state Medical Marijuana Identification Card issued through counties, defined serious medical conditions, and set baseline limits of 8 ounces and 6 mature or 12 immature plants per patient.
Replaced the collective and cooperative model with state-licensed cultivation, testing, and retail, now overseen by the Department of Cannabis Control.
Legalized adult use for people 21 and older and states that it does not amend, repeal, or affect the Compassionate Use Act, so medical protections continue alongside the adult-use market.
Court decisions have defined how far the act reaches:
Every California medical recommendation still rests on section 11362.5. It is what allows adults 18 to 20 to buy cannabis from medicinal retailers, what supports possession beyond adult-use limits when a physician recommends it, and what protects physicians who evaluate patients.
Federal law is changing but remains separate. In April 2026 the U.S. Department of Justice moved marijuana covered by a qualifying state medical license into Schedule III, while other marijuana stays in Schedule I; that order is being challenged in federal court. Prop 215 protects patients from state prosecution, not federal law. See /laws/ for current details.
Last reviewed: October 13, 2026. This page is general information, not legal or medical advice.
People often call a physician's recommendation a Prop 215 card. Prop 215 itself does not create a card. The optional state ID card, the MMIC, was created later by SB 420 and is issued by counties.
Yes. Prop 64 expressly states that it does not amend, repeal, or affect the Compassionate Use Act, so medical protections continue alongside adult-use legalization.
No. The act itself refers to amounts for the patient's personal medical purposes. The 8-ounce and plant limits come from SB 420, and courts have treated them as a safe harbor rather than a cap on the Prop 215 defense.
No. Prop 215 is a state law and does not change federal law. Federal scheduling changed for some medical marijuana in 2026, but that order is being litigated.
The statute refers to a written or oral recommendation or approval. In practice, retailers, counties, and law enforcement expect a written recommendation, and physicians must document it in your medical record.
Someone the patient designates who has consistently assumed responsibility for the patient's housing, health, or safety. See /caregiver/ for details.
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