Tourist cannabis rules: ID, airports, and state lines

Yes in 17 of the 21 states this guide covers, if you are 21 or older and carry a valid ID, and none of those 17 requires residency for adult-use purchases. California's regulator lists age as the test for adult-use buyers (21 or older), New York allows adults 21 and older to possess cannabis, and the regulators in New Jersey, Massachusetts, Washington, Maryland and Connecticut say on their own pages that visitors 21 and older may buy. The other four, Florida, Pennsylvania, Oklahoma and Texas, run medical programs only, covered in the next section. Travelers under 21 should read the guide to dispensaries at 18 first.

California and New York accept foreign documents. California accepts a valid passport issued by the United States or by a foreign government (4 CCR 15404(c)(3)). New York accepts a valid passport from any country, a consular ID card, and a valid driver's license from any U.S. state or Canadian province (9 NYCRR 123.10(d)(2)).

Limits apply to visitors too, and in 16 of the 17 adult-use states they match the resident limits. California caps adult-use sales at 28.5 g of non-concentrated cannabis and 8 g of concentrate per customer per day (4 CCR 15409), and New York allows adults to possess up to 3 oz of cannabis and 24 g of concentrate. Illinois is the exception: since 12 Jun 2026, an adult who lives in another state or country may hold 500 mg of THC in infused products, 30 g of flower and 5 g of concentrate, half the resident figures (410 ILCS 705/10-10). The purchase limits guide compares the caps state by state.

A foreign passport works on paper in 11 of the 17. California, New York, Colorado, Arizona, New Jersey, Washington, Maryland, Oregon, New Mexico and Minnesota list a passport without limiting it to U.S. ones, and Nevada's list takes one that the U.S. government issued or recognizes (NAC 678B.306; COMAR 14.17.12.04; ORS 475C.217; 16.8.2.40(E) NMAC; Minn. Stat. 342.27). Licenses from outside the United States are another matter: New York, Washington, Arizona and Minnesota take Canadian provincial licenses, Oregon takes NEXUS or SENTRI proof but no foreign driver license, and for most overseas visitors the passport is the document to carry.

Bring an unexpired card. Colorado, Washington, Oregon, Illinois, Maryland and Missouri require one, and Nevada's regulator allows only a narrow exception for a U.S. license expired less than two years, shown with a second document. Maryland takes only a physical ID, not its mobile ID (MCA policy FAQ), and New Jersey and Massachusetts check ID at the door and again at the sale (N.J.A.C. 17:30-14.3; 935 CMR 500.140(2)). Massachusetts voters decide Question 8, which would end adult-use retail sales, on 3 Nov 2026; current rules apply until any change takes effect.

Six states ask for valid government-issued photo ID without a full list of documents: Illinois, Massachusetts, Michigan, Ohio, Connecticut and Missouri (410 ILCS 705/15-85; 935 CMR 500.140; Mich. Admin. Code R 420.505; OAC 1301:18-8-02; Conn. Gen. Stat. 21a-421fff; 19 CSR 100-1.180). A valid foreign passport fits the wording in most of them, but the store makes the call, and Michigan's rule mentions only a driver's license or government ID card, so a visitor relying on a foreign passport should ask before going.

Not in Florida, Pennsylvania or Texas, and in Oklahoma only with a state medical license. None of the four has an adult-use market. Florida sells only to registered Florida patients and caregivers and offers no reciprocity (s. 381.986; OMMU), Pennsylvania's dispensaries serve only Pennsylvania residents holding a Department of Health card (35 P.S. 10231.103, 10231.303), and Texas fills low-THC prescriptions only for permanent Texas residents listed in its Compassionate Use Registry (Occupations Code 169.003; Health and Safety Code 487.107). A passport or an out-of-state license does not change this; the barrier is residency.

Oklahoma is the one exception. Its Medical Marijuana Authority issues a 30-day out-of-state patient license to visitors of any age who hold a medical marijuana card issued by their home state's government, and the license lets the holder buy, use and grow medical marijuana in Oklahoma (63 O.S. 420(F); OMMA). Cards or recommendations from out-of-state doctors do not count, so patients from Missouri and Arkansas qualify and Texas patients do not; the license cannot outlast the home card, and a new one may be requested a week before it expires (OAC 442:10-2-5; OMMA).

Florida's only opening is for seasonal residents, who may register with two proofs of a Florida address and an in-person exam by a Florida physician (s. 381.986(4)(a), (5)(b)). Everyone else without a card risks a criminal charge. In Florida, 20 g or less of plant cannabis is a first-degree misdemeanor and any concentrate, including most vape oil, a third-degree felony (s. 893.13(6)); in Texas, 2 oz or less is a Class B misdemeanor and a marijuana vape or edible under 1 g a state jail felony (Health and Safety Code 481.116, 481.121); in Pennsylvania, holding 30 g or less can bring up to 30 days in jail (35 P.S. 780-113); and in Oklahoma, unlicensed possession can mean up to a year in confinement (63 O.S. 2-402).

Carrying it in from a legal neighbor does not help. Pennsylvania treats a purchase made legally in Delaware, Maryland, New Jersey, New York or Ohio as illegal possession once it crosses in (35 P.S. 780-113), Texas applies the same charges to products bought in New Mexico (Health and Safety Code 481.116, 481.121), and Florida's drug laws keep applying at its airports and cruise terminals.

Not with what you buy at an adult-use shop. Since its 27 Apr 2026 update, TSA's Medical Marijuana page lists carry-on and checked bags as 'Yes (Special Instructions)'. The page's only text says TSA officers do not search for illegal drugs, refer any illegal substance found at screening to a law enforcement officer, and leave the final decision to the TSA officer; it gives no steps for packing medical marijuana.

The federal rule behind that change took effect on 28 Apr 2026. It placed FDA-approved drug products containing marijuana, and marijuana covered by a state medical-marijuana license, in Schedule III. The same rule says any other form of marijuana remains a Schedule I controlled substance (Federal Register 2026-08176).

Cannabis bought at an adult-use dispensary in any of the 17 adult-use states this guide covers is not covered by a state medical-marijuana license, so it is still Schedule I under federal law. A DEA hearing on moving marijuana to Schedule III (Federal Register 2026-08177) took place from 29 Jun to 15 Jul 2026, and on 29 Sep 2026 DEA's Chief Administrative Law Judge stayed the case pending a motion to add a September 2026 GAO report to the record; as of 16 Oct 2026, no final rule on that broader change had appeared in the Federal Register.

State rules point the same way. Thirteen of the 17 adult-use states say on official pages that cannabis should not or may not cross a state line: the regulators in California, Washington, Oregon, New Mexico, Illinois, Ohio, Minnesota, New York, New Jersey, Massachusetts, Connecticut and Maryland, and the State of Colorado's cannabis site, and New York's adds that leaving or entering the state or country with any cannabis product is against the law. Nevada's statute exempts adults only from prosecution in Nevada (NRS 678D.200), the Arizona, Michigan and Missouri laws give no cover once you leave, and Oklahoma's medical regulator bars its patients from taking cannabis out of the state.

Some airports add a ban of their own. Clark County Code 20.04.090 makes possessing or using marijuana anywhere on county airport property a violation, from the garages and roadways to the terminals at Harry Reid International in Las Vegas, and Denver International Airport prohibits marijuana on its property, the City and County of Denver says. Portland International's rules bar marijuana past security for travelers bound outside Oregon, whose law counts cannabis packed in luggage as an illegal export (ORS 475C.229), and Washington's Liquor and Cannabis Board says taking cannabis on a commercial aircraft is illegal. The flying guide covers each state's airport rules.

Yes, if it is stored the way each state requires and nobody uses it in the vehicle. California's regulator says cannabis in a vehicle must be in a sealed package or container or in the trunk, and an open container while driving or riding in a vehicle is illegal.

California law also bars smoking or ingesting cannabis while driving or operating a car, boat or aircraft (Health and Safety Code 11362.3(a)(7)), and California's public-health department says drug-impaired driving carries the same penalties as alcohol-impaired driving.

New York's regulator says cannabis in a vehicle should always be securely stored in a closed container, that neither the driver nor passengers may open cannabis packaging in the car, and that smoking cannabis in a vehicle is illegal whether it is moving or parked. The driving with cannabis guide covers California and New York in more detail.

Nevada treats consuming cannabis in any vehicle as a misdemeanor punishable by a fine of up to $600, for drivers and passengers alike (NRS 678D.310), and Colorado's state site says neither drivers nor passengers may open a package and use it in a car, even a parked one. Arizona bars anyone in an operating vehicle, passengers included, from consuming (A.R.S. 36-2851), and on a Washington highway cannabis must be sealed or in the trunk, with the glove box counted as within reach (RCW 46.61.745).

New Jersey requires an unsealed item meant for smoking or vaping to go in the trunk, or in a car with no trunk, behind the last upright seat, and bars a passenger from smoking or vaping while the car is being driven, with a $200 fine for a first offense of either (N.J.S.A. 39:4-51a, 39:4-51b). Illinois bars any use in a vehicle and requires a sealed, odor-proof, child-resistant container out of reach, although since 12 Jun 2026 cannabis left in its sealed original dispensary package need not be out of reach (410 ILCS 705/10-35, 15-85; 625 ILCS 5/11-502.15). Massachusetts fines an open container in the passenger area up to $500, so keep purchases sealed in the trunk or a locked glove compartment (M.G.L. c. 94G, s. 13(d)).

In Michigan the driver may not consume cannabis at all and no one may smoke it in the passenger area on a public road (MCL 333.27954). Ohio requires purchases in a car to stay in the original package until opened, and after that in the trunk or another area the driver cannot easily reach, and no one may smoke or vape it in a vehicle (R.C. 3796.062(B), 3796.06(C)(2)).

Minnesota bars any use in a motor vehicle and sends opened or unsealed products to the trunk, glove box excluded (Minn. Stat. 342.09; 169A.36), and Oregon bars drivers and passengers from consuming in a vehicle on a highway, apart from passengers of common carriers that mainly carry people for hire (ORS 811.482). Connecticut makes use while the car is being driven a misdemeanor for the driver and for passengers (Conn. Gen. Stat. 53a-213a, 53a-213b), Maryland bars the driver from smoking or consuming it in the passenger area (Transportation 21-903), New Mexico's regulator says using it while driving is illegal, and Missouri's constitution leaves use in a moving car unprotected (Article XIV, Section 2.3).

Driving impaired is illegal in all 21 states. Washington, Illinois and Ohio set THC blood levels, and Pennsylvania and Oklahoma go further, treating any trace of THC or its metabolites in a driver's blood or other bodily fluid as DUI, medical card or not (RCW 46.61.502; 625 ILCS 5/11-501; R.C. 4511.19; 75 Pa.C.S. 3802(d)(1); 47 O.S. 11-902). The guide to Amtrak, rental cars and rideshares goes state by state.

Not by smoking or vaping in California: since 1 Jan 2024 state law makes hotels and motels 100% smoke-free, guest rooms included. For other use, California's regulator says most hotels do not allow guests to use cannabis in their rooms and tells visitors to ask the front desk; for a vacation rental, it says to check the owner's rules.

In New York, hotel owners can ban the smoking or vaporizing of cannabis on their properties, and landlords, property owners and rental companies can ban it on their premises.

California also bars smoking cannabis anywhere tobacco smoking is prohibited (Health and Safety Code 11362.3(a)(2)), so a no-smoking room or building rules out smoking cannabis there too.

In Nevada, Arizona, Michigan, Missouri and Minnesota the hotel's own policy decides what happens in a guest room, because each state lets property owners prohibit cannabis (NRS 678D.510; A.R.S. 36-2851; MCL 333.27954; Missouri Constitution, Article XIV, Section 2.3(4); Minn. Stat. 342.09). Common areas are another matter: a casino floor, lobby or pool deck in Nevada is a public place, where consuming can bring a misdemeanor charge and a fine of up to $600 (NRS 678D.310), and Arizona's definition of a public place takes in hotel common areas, so lighting up there is a petty offense under A.R.S. 36-2853.

Smoke-free laws settle more of it elsewhere. Denver's licensing department says the Colorado Clean Indoor Air Act keeps hotels from allowing smoking in guest rooms; Illinois and Washington treat at least 75 percent of hotel rooms as smoke-free (410 ILCS 82/10; RCW 70.160.020); Maryland and Oregon let hotels allow smoking in no more than 25 percent of rooms and New Mexico in no more than 10 percent, with cannabis counted under each state's smoke-free law (Health-General 24-505; ORS 433.850; NMSA 24-16-12); and Massachusetts allows smoking only in a room the hotel has designated for it, while Boston's workplace smoking regulation makes no exception for hotels (M.G.L. c. 270, s. 22). New Jersey hotels may choose to set aside up to 20 percent of guest rooms for smoking or vaping cannabis (N.J.S.A. 2C:35-10a).

Connecticut works the other way round: no hotel may ban edibles, drinks or other non-smoked use in a guest room, but every hotel must ban smoking and vaping cannabis anywhere on its property (Conn. Gen. Stat. 21a-422l), and the tribal casino resorts may follow their own rules. Ohio allows smoking or vaping cannabis only on privately owned residential or farm property and names no hotel exception (R.C. 3796.06(C)(2)), which on a plain reading rules out hotel rooms; no Ohio agency page addresses them.

Delivery rarely helps: Massachusetts, Colorado, Maryland and Oregon limit it to residences, Massachusetts and Oregon naming hotels as excluded; Nevada bars it at any gaming-licensed property; Illinois, Washington and Ohio have no adult-use delivery; and where Missouri, New Mexico or Minnesota stores deliver to a hotel, the hotel may still ban it. In Florida, Pennsylvania and Texas a visitor has no legal cannabis to use in a room at all, and Oklahoma lets hotels ban smoking and vaping even by licensed patients (63 O.S. 427.8). The hotel room guide covers each state's hotel rules in more depth.

It depends on the state. California allows use on private property but not in public places such as restaurants or bars, and state law does not permit smoking or ingesting cannabis in a public place except at a locally approved on-site consumption business (Health and Safety Code 11362.3(a)(1)).

California also bars smoking within 1,000 feet of a school, day care center or youth center while children are present. Cities and counties can license on-site consumption areas at retailers, limited to adults 21 and older and not visible from public places (Business and Professions Code 26200(g)).

New York allows adults to consume in a private home or most places where tobacco is allowed, except in a motor vehicle, a private business such as a restaurant patio, a hookah or cigar bar, or on federal property. Smoking cannabis is banned in all New York State Parks (since 13 Oct 2022), and in New York City it is also illegal in restaurants, parks, event spaces and any business, including dispensaries.

Every adult-use state this guide covers except New York and Connecticut bars smoking cannabis in public places. Connecticut, like New York, bans it wherever tobacco smoking is banned and lets towns add limits, and it bans any cannabis use on state park and forest land, beaches and waters (Conn. Gen. Stat. 19a-342, 23-4b).

The maximum fine for public use is $50 in Maryland for a first offense, in New Mexico, in Washington plus assessments and in Chicago; $100 in Massachusetts, Michigan and Missouri; $150 in Ohio; $300 in Arizona and in Minnesota cities that make it a petty misdemeanor; $600 in Nevada; and $1,000 in Oregon (Criminal Law 5-601; NMSA 26-2C-26; RCW 7.80.120; Chicago Municipal Code 7-24-099; M.G.L. c. 94G, s. 13(c); MCL 333.27965; Missouri Constitution, Article XIV, Section 2.10(4); R.C. 3796.99(B); A.R.S. 13-802; Minn. Stat. 152.0263, 609.02; NRS 678D.310; ORS 153.018).

Shared places to use it are few. Nevada's regulator lists three licensed lounges, all in the Las Vegas area (1 Sep 2026); Colorado's list of 1 Oct 2026 shows 12 hospitality licenses, ten at Denver addresses; New Mexico's licensing data showed 27 licensed consumption areas on 3 Sep 2026, though the same portal's home page shows 28; New Jersey had five endorsed consumption areas at dispensaries in October 2026; and Michigan's regulator counted five designated consumption establishment licenses on 28 Feb 2026. Minnesota has no smoking lounges, but 539 hemp retailer sites held an endorsement to serve hemp THC drinks and edibles on site on 28 Sep 2026.

Massachusetts and Maryland have licensed no lounge yet, Oregon, Connecticut, Ohio and Arizona offer no lounge license of any kind, Washington makes cannabis clubs a felony (RCW 69.50.465), and this guide could not confirm an open lounge in Illinois or Missouri, where a lounge needs local approval first. Florida, Pennsylvania and Texas give a visitor no legal place to use cannabis, and Florida bars even its cardholders from using marijuana other than low-THC cannabis in public places and vehicles (s. 381.986(1)(k)). The consumption lounges guide lists them by city.

Yes. California's regulator says you cannot use or possess cannabis on federal land, such as national parks, and New York's says you cannot consume it on federal land, national parks and national forests included. The regulators in Nevada, Illinois, Massachusetts, Washington, Maryland and Minnesota and the State of Colorado's cannabis site say the same about federal land or property, and Colorado's names national forests and the ski slopes on them.

This rests on federal law, and the April 2026 federal rule did not change the status of adult-use cannabis: it remains Schedule I (Federal Register 2026-08176). A first offense of simple possession can mean as long as a year in prison and a fine of no less than $1,000 under 21 U.S.C. 844, and Mount Rainier, Crater Lake, Guadalupe Mountains, Mesa Verde and Great Sand Dunes warn on their own pages of a fine of up to $5,000, up to six months of imprisonment, or both. Crater Lake's page adds that a valid state medical card does not change this, so patients from the four medical-only states should not count on theirs either. Leave cannabis out of any day trip to a national park or forest.

Tribal land follows its own law. The Navajo Nation makes possessing marijuana on its lands a crime (17 N.N.C. 394(a)(3)), the Havasupai Tribe bans drugs and alcohol of every kind on its reservation, so a legal Arizona purchase is not legal there, and Minnesota's regulator says lawful possession on Tribally regulated land depends on each Tribal government's code. The national parks guide goes park by park.

Not on Royal Caribbean, whose conduct policy prohibits marijuana on its ships, even in its medicinal form, and whose onboard rules apply regardless of medical authorization or local legality. Our cruise guide adds what Carnival, Celebrity, Norwegian, Princess, Holland America and Virgin Voyages publish on marijuana and CBD, and the list your own line sends before sailing has the last word.

At the border, CBP warns that arriving at a U.S. port of entry with marijuana may result in seizure, fines or arrest and may affect admissibility (CBP page last modified 23 Aug 2023). The April 2026 federal rule keeps a federal permit requirement on all imports and exports of products containing marijuana (Federal Register 2026-08176).

The Canadian border is closed to cannabis both ways. The Canada Border Services Agency says it is illegal to carry cannabis over the Canadian border in either direction, for medical or recreational use, which matters at Michigan's crossings in Detroit and Port Huron, at Washington's ports in Blaine and Point Roberts, on Minnesota's border and for anyone boating across Lake Erie from Ohio, and unauthorized import or export can bring up to 14 years in prison under Canada's Cannabis Act (S.C. 2018, c. 16, s. 11).

The Mexican border is no different: CBP says federal law prohibits importing and exporting marijuana. In New Mexico and Texas, Border Patrol also runs stations and checkpoints away from the border, such as the station on US-70 a mile before the White Sands visitor center, and federal law, which still lists adult-use marijuana in Schedule I, applies at every one of them. Cruises from Florida ports start in a state where a visitor may not lawfully possess cannabis at all (s. 893.13).

Do not pack them. Not one of the 21 states in this guide lets cannabis leave with you, regulators in 13 adult-use states and Oklahoma's medical regulator say so on their own pages, and adult-use cannabis remains Schedule I under federal law. Washington's board tells visitors to use or dispose of it before leaving the state, and Maryland's says mailing cannabis into or out of the state is illegal. Buy for the length of your stay.

If leftovers stay in a home with children or pets, California's public-health department advises a locked, childproof container, New York's regulator says to store cannabis locked and out of reach of children and pets, and Illinois' oversight office recommends a child-resistant container kept where children and pets cannot see or easily reach it.

Giving what is left to another adult is legal in all 17 adult-use states if nothing is paid and the person is 21 or older, within each state's gift limit: for example 1 oz in New Jersey, Arizona and Oregon, 2 oz in Massachusetts and Minnesota, 2.5 oz in Nevada and Michigan and 3 oz in Missouri (N.J.S.A. 2C:35-10a; A.R.S. 36-2852; ORS 475C.305; M.G.L. c. 94G, s. 7(a)(4), as amended by St. 2026, c. 65; Minn. Stat. 342.09; NRS 678D.200; MCL 333.27955; Missouri Constitution, Article XIV, Section 2.10(1)). Washington allows a smaller gift, such as half an ounce of flower, only out of public view or in the store's packaging (RCW 69.50.4013), Ohio only on private residential or farm property (R.C. 3796.221(A)(4)), and Connecticut bars gifts tied to a sale, a donation, a paid-entry venue or an event giveaway while expressly allowing free gifts between people with a bona fide social relationship (Conn. Gen. Stat. 21a-421hhh). Illinois' oversight office cautions that handing cannabis to someone who is leaving the state may leave that person in breach of federal law and possibly other states' laws.