Overview
Each of the 13 states we cover runs its own independent medical marijuana registry. Getting certified in one state doesn't automatically register you in another, and a dispensary generally can't verify a card it wasn't built to check. A small number of states have built limited reciprocity programs for visiting patients, but most simply require you to hold that state's own card to buy there.
Which states recognize an out-of-state card
- New York offers full reciprocity as of its 2025 program reform — visiting patients with a valid out-of-state card can generally purchase from New York dispensaries.
- Arizona recognizes out-of-state cards for legal possession and use, but not for purchasing from an Arizona dispensary — you'd need an Arizona card to buy there.
- New Jersey offers a non-renewable 6-month temporary registration specifically for out-of-state patients, rather than automatic recognition of your home-state card.
- Oklahoma offers a 30-day temporary patient license (about $100) for out-of-state visitors, which allows dispensary purchases but not home cultivation.
- Florida, California, Pennsylvania, Michigan, Ohio, Illinois, Massachusetts, Maryland, and Missouri do not currently recognize out-of-state medical cards — you need that state's own card to buy from a licensed dispensary there.
If you're relocating rather than just visiting, you'll typically need to apply for a new card as a resident of your new state — check the state guide for wherever you're headed.
Why you can't fly with it, even between two legal states
Airports and air travel are regulated federally, and cannabis remains a Schedule I substance under federal law regardless of any state's program. The TSA's screening process is designed to find security threats, not drugs — but if a TSA officer finds cannabis during a bag check, standard procedure is to refer the matter to local law enforcement, whose response depends on that airport's local and state law. That risk exists even when you're flying from one legal state to another, because the flight itself crosses federal jurisdiction. The safest approach is simply not to fly with cannabis or cannabis products, medical card or not.
Key takeaways
- A medical marijuana card is state-specific — it doesn't automatically work in another state.
- New York offers the broadest reciprocity of the 13 states we cover; Arizona recognizes out-of-state cards for possession but not purchase.
- New Jersey and Oklahoma offer temporary registrations for visiting patients rather than automatic recognition.
- Most states (Florida, California, Pennsylvania, Michigan, Ohio, Illinois, Massachusetts, Maryland, Missouri) require their own card for dispensary purchases.
- Never fly with cannabis — air travel is federally regulated, regardless of state legality on either end.
Common questions
Can I use my medical card in a state I don't live in? +
It depends on the state. New York offers full reciprocity for visiting patients, Arizona recognizes out-of-state cards for possession but not dispensary purchases, and New Jersey and Oklahoma offer temporary registrations. Most other states require their own card.
Is it legal to fly with medical marijuana? +
No — air travel falls under federal jurisdiction, and cannabis remains federally illegal regardless of state law. This applies even for flights between two states that both allow medical marijuana.
What if I'm moving to a new state permanently? +
You'll generally need to apply for that state's own medical marijuana card as a new resident — your old state's card doesn't transfer. Check your new state's residency and qualifying-condition requirements before you move.
Educational content only — not medical or legal advice. Reciprocity rules change; always verify current requirements with the destination state's medical marijuana program before traveling.