What are the cannabis laws for tourists in the US?
Cannabis laws by state for tourists come down to one rule: you follow the law of the state you are standing in. You can buy and carry cannabis in 24 states and Washington, D.C. if you are 21 or older with a valid photo ID. Your home state's rules do not follow you, and you do not need a local address to shop.
Everything else, including how much you can buy, where you can smoke, and what happens if you break a rule, comes from that one state. There is no national cannabis law that covers visitors.
cannabis laws by state driving
Which states sell cannabis to visitors?
Twenty-four states and Washington, D.C. allow adult-use sales. In each of them, any visitor aged 21 or older can walk into a licensed dispensary and buy.
- West: Alaska, Arizona, California, Colorado, Montana, Nevada, New Mexico, Oregon, Washington
- Midwest: Illinois, Michigan, Minnesota, Missouri, Ohio
- Northeast and Mid-Atlantic: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia
- District of Columbia: possession and home grow are allowed, but retail storefront sales are not. Gifting shops operate in a gray area.
About half the country still limits cannabis to medical use with a state-issued card, or bans it outright. Florida, Texas, and Tennessee fall in the medical-only group.
What ID do you need at a dispensary?
A government photo ID that shows your date of birth. A passport, driver's license, or state ID card works at most shops, and the door staff scans or photocopies it before you enter the sales floor.
Recreational buyers must be 21 in every adult-use state. Medical patients can be 18 in many states, and a few states allow younger patients with a caregiver present.
Some states cap how much one person can buy in a single day and log the purchase in a statewide tracking system. If you plan to visit two shops on the same afternoon, ask the budtender about the daily cap first.
How much can you buy and carry?
Limits vary by state and are set per transaction or per person. These are the public possession caps for adults 21 and older:
- California: 1 ounce of flower, 8 grams of concentrate
- Colorado: 1 ounce per transaction for recreational buyers
- Nevada: 1 ounce of flower, one eighth of an ounce of concentrate
- Washington: 1 ounce of flower, 7 grams of concentrate, 16 ounces of solid edibles
- Illinois: 30 grams of flower, 5 grams of concentrate, 500 mg of THC in edibles
- New York: 3 ounces of flower, 24 grams of concentrate
- Michigan: 2.5 ounces in public
- Massachusetts: 1 ounce outside the home, 10 ounces at home
- Arizona: 1 ounce
- Ohio: 2.5 ounces
Carry limits matter as much as purchase limits. A shop can sell you a legal amount, and an officer in the next town can still cite you for an open package or an amount over the public cap.
Where can you consume cannabis as a tourist?
Private property, with the owner's permission, in states where adult use is allowed. That means a rental home or a hotel room if the property permits it. Smoking on sidewalks, in parks, on beaches, and in vehicles is against the law in every legal state.
Hotels and rentals set their own rules. Many ban smoking and vaping, and some charge a cleaning fee for the smell. Edibles avoid that problem, but they take 30 to 90 minutes to take effect, so start with a low dose.
A small number of states license places to use cannabis on site. Nevada, California, New York, New Jersey, Illinois, Colorado, and Alaska all have some form of licensed lounge or on-site consumption. Casinos, airports, and federal land stay off limits even in Las Vegas or Denver.
Can you cross state lines or fly with cannabis?
No. Moving cannabis from one state to another is a federal offense, even when both states allow adult use. The plant stays illegal under the Controlled Substances Act, and state legalization does not shield you from federal charges.
Flying is trickier. TSA officers screen for threats, not drugs, and they hand any cannabis they find to local police. In a legal state that can mean nothing. In a state where it is illegal, or at a federal checkpoint, it can mean a citation or an arrest.
Never pack cannabis in a checked bag on a trip home. Crossing into a state without legal sales, or back into a country where it is banned, turns a legal purchase into a serious charge.
Do out-of-state medical cards work?
Some states accept them. Arizona, Hawaii, Maine, Michigan, Nevada, New Hampshire, New Mexico, Oklahoma, and Rhode Island recognize out-of-state medical patients, though a few require you to register with the state first.
Most states do not honor another state's card. If you are 21 or older, buying recreationally in a legal state is the simpler path.
What happens if you break the rules?
Penalties follow the state you are in. Public consumption is a civil fine in most legal states, often around $100. Possession over the cap, driving under the influence, or carrying cannabis into a state where it is banned can lead to a misdemeanor charge, a court date, and jail time in some places.
Federal land has a separate rulebook. National parks, national forests, military bases, and federal courthouses enforce federal law, where any amount is illegal.
Can tourists buy cannabis in Florida or Texas?
No. Florida runs a medical program that requires a Florida-issued card, and Texas allows only a low-THC medical product for a short list of conditions. Neither state sells recreational cannabis to visitors.
Idaho and Wyoming have no medical or recreational program at all. Travelers heading to those states should leave any cannabis behind, since a traffic stop or an airport bag check can turn into an arrest.
Quick tips for tourists
- Bring a passport or state ID if you plan to shop. Shops check age at the door.
- Buy only what you plan to use before you leave the state.
- Keep cannabis in the sealed dispensary package while in a car, and put it in the trunk.
- Skip public smoking. Stick to private property that allows it.
- Ask the budtender about local rules, lounge options, and hotel policies nearby.
- Leave it home if your trip crosses into a state without legal sales.