You must be 21 to buy recreational cannabis in every US state where adult-use sales are legal. Medical cannabis is different: most states set the minimum at 18, and some allow patients younger than 18 to purchase through a registered caregiver.
Convenience changed how you buy, not who can buy. Delivery apps, online pre-orders, and curbside pickup still run a government ID check at handoff.
What ID is Accepted for Cannabis Dispensary
What age can you buy cannabis legally in the US?
Recreational: 21. That applies in every state and district that has legalized adult-use sales, with no exceptions below 21.
what age can you buy cannabis legally
Medical: 18 in most states with a medical program. Under-18 patients typically need a caregiver to buy on their behalf.
Medical Cannabis Age Limit With a Card: Rules for Minors and Caregivers
Does a medical card let you buy at 18?
In most medical states, yes. You still need valid state ID that matches the patient registry. Some states cap how much a patient can purchase per visit or per month.
Can an out-of-state ID buy cannabis?
For recreational purchase, most legal states accept any valid government photo ID. For medical purchase, out-of-state cards usually fail unless the state offers reciprocity.
Which IDs work at the counter or the door?
- State-issued driver's license or REAL ID
- US passport or passport card
- Military ID
- State medical cannabis card paired with photo ID
Expired IDs fail, even by one day. A vertical under-21 license still works after your 21st birthday as long as the card is valid.
Why convenience did not lower the age
Delivery is the biggest convenience shift, and it carries the tightest checkpoint. Drivers scan ID and often collect a second signature at the door. Online ordering removes the line, not the verification.
What are the pitfalls when buying?
- Buying in one state and driving home. Transporting cannabis across state lines is illegal under federal law.
- Accepting a gift from a delivery service that asks for a donation. Unlicensed gifting operations skip age verification and carry legal risk.
- Assuming an 18-year-old can buy because a friend with a medical card did. Age rules apply per transaction, per product type.
- Using a fake or borrowed ID. Shops log scans, and a flagged ID can end your ability to buy from that chain.
FAQ
Can you buy cannabis at 18 in a recreational state?
No. Recreational purchase is 21 everywhere it is legal, regardless of the medical age in that same state.
Do you need to be 21 for edibles and vapes too?
Yes. The age applies to all product categories sold in licensed shops: flower, vape, edibles, concentrates, and topicals.
What if the delivery driver does not check ID?
That is a red flag for an unlicensed seller. Licensed delivery requires an ID scan at handoff.