Can Tourists Buy Cannabis in California?

Last verified: March 2026

No Residency Requirement

California imposes no residency requirement for purchasing cannabis. Under Proposition 64, any person aged 21 or older with a valid government-issued photo ID can walk into a licensed dispensary and make a purchase. Accepted forms of identification include:

• Any U.S. state driver's license or ID card — all 50 states accepted
• U.S. passport or passport card
• Foreign passport — international visitors are welcome
• Military ID — though active-duty military should be aware that cannabis use violates the UCMJ regardless of state law

The same possession limits apply to visitors and residents: 28.5 grams of flower and 8 grams of concentrated cannabis. There are no purchase tracking systems between dispensaries, but each transaction at a single dispensary is limited to these amounts.

Delivery services are also available to visitors. Licensed delivery services under DCC regulations will deliver to any address in California — hotels, vacation rentals, and Airbnbs included — as long as someone 21+ with valid ID is present to receive the order.

Airport Rules: TSA, LAX & SFO

This is where it gets nuanced. Cannabis remains a Schedule I controlled substance under federal law, and all airports involve a mix of federal and local jurisdiction.

TSA's position: The Transportation Security Administration does not specifically search for cannabis. TSA's screening procedures are focused on security threats — weapons, explosives, and prohibited items that endanger flight safety. However, if a TSA officer discovers cannabis during a routine security screening, federal law requires them to refer the matter to local law enforcement.

LAX (Los Angeles International): In 2018, the Los Angeles Airport Police adopted a permissive approach. Officers who receive TSA referrals generally do not confiscate or cite for amounts within California's legal possession limits (28.5g flower, 8g concentrate). LAX has installed amnesty boxes past security checkpoints where travelers can voluntarily dispose of cannabis products before boarding. The practical reality: if you are within legal limits at LAX, you are unlikely to face any consequences — but you are still technically carrying a federally controlled substance through a federal checkpoint.

SFO (San Francisco International) and SAN (San Diego International): Similar permissive approach to LAX. Local law enforcement at both airports generally defers to state law for amounts within legal limits.

The bottom line: never fly with cannabis. Even though California airports are permissive on the departure end, you are entering federal airspace the moment the plane leaves the ground. Landing in a state where cannabis is illegal — or in a federal jurisdiction — creates real criminal exposure. International flights carry the additional risk of customs enforcement at your destination. The amnesty boxes exist for a reason.

State Parks vs. National Parks

California has both state-managed and federally managed parks, and the rules are fundamentally different.

State Parks: Possess Yes, Consume With Caution

Cannabis possession is legal in California state parks under state law. Consumption is treated like any other public place — technically subject to a $100 fine under HSC §11362.3, though enforcement is inconsistent. Practical tips for state parks:

• Keep products stored and out of sight when not in use
• Do not consume in developed areas, visitor centers, or near other families
• Fire restrictions apply to smoking in many parks during fire season

National Parks: Completely Illegal

Every national park in California is federal land. Cannabis possession, use, and distribution are federal crimes on national park property regardless of California state law. National park rangers are federal law enforcement officers who enforce the Controlled Substances Act. California's national parks include:

• Yosemite National Park
• Joshua Tree National Park
• Death Valley National Park
• Sequoia National Park
• Kings Canyon National Park
• Redwood National Park
• Channel Islands National Park
• Pinnacles National Park
• Lassen Volcanic National Park

Penalties for cannabis possession on federal land include fines starting at $150 under the Assimilative Crimes Act. Leave all cannabis products at your lodging before entering any national park.

Other Federal Land

The national park prohibition extends to all federal land in California. This includes:

• National forests: Los Padres, Angeles, San Bernardino, Shasta-Trinity, Sequoia, Sierra, Tahoe, and others. The U.S. Forest Service enforces federal law
• Bureau of Land Management (BLM) land: Extensive desert and wilderness areas, popular camping and recreation sites
• Military installations: Camp Pendleton, Edwards Air Force Base, Naval Base San Diego, Travis Air Force Base, and all other bases
• National monuments: Muir Woods, Cabrillo, Cesar Chavez, and others

Don't Cross State Lines

Transporting cannabis across state lines is a federal crime regardless of the legal status in either state. This applies even when traveling between two legal states — for example, driving from California to Nevada or Oregon with cannabis products is federal drug trafficking under 21 U.S.C. §841.

• Driving to Nevada: Federal and state checkpoints exist along I-15 and I-40. Cannabis purchased in California must be consumed or disposed of before crossing the state line
• Driving to Oregon: Both states are legal, but interstate transport remains a federal crime. Purchase in each state separately
• Driving to Arizona: Arizona is legal, same rule applies — do not transport across the border
• Mexico border: International border crossing with cannabis is a serious crime under both U.S. and Mexican law. Border Patrol agents and customs officers actively enforce this