A state medical marijuana laws map shows which states have legalized medical cannabis. As of 2025, 38 states and the District of Columbia have comprehensive medical marijuana programs. Another 5 states have limited programs that allow only low-THC or CBD products. The map changes as new laws pass and programs start.

Medical Cannabis Laws by State: Qualifying Conditions

What the map shows

A state medical marijuana laws map includes:

medical cannabis laws by state cost

Key differences among states

State medical marijuana laws vary. Some states allow smokable flower. Others ban it. Some states allow patients to grow their own plants. Others do not. Possession limits range from 1 ounce to 3 ounces or more. Some states require patient registration. Others allow patients to use a doctor's recommendation alone.

Medical Cannabis Card Costs by State: Fees and Visits

Qualifying conditions also differ. Common conditions include cancer, HIV/AIDS, glaucoma, chronic pain, and PTSD. Some states add conditions like autism, Crohn's disease, or opioid use disorder. A few states allow doctors to recommend medical marijuana for any condition they see fit.

medical cannabis legal states list

How to read a state medical marijuana laws map

Start with the state's status. Check if the state has a comprehensive program, a limited program, or no program. Then look at the qualifying conditions. Next, check possession limits and whether home cultivation is allowed. Last, check reciprocity. Some states accept out-of-state medical marijuana cards. Others do not.

Patient registration and possession limits

Most states require patients to register with a state agency. The process involves a doctor's recommendation and a fee. Fees range from $25 to $200. Some states issue cards within days. Others take weeks. Possession limits vary. For example, Arizona allows 2.5 ounces every 14 days. California allows 8 ounces of usable cannabis. Florida allows a 35-day supply. Check the state's current rules.

Reciprocity

Reciprocity means a state accepts another state's medical marijuana card. States with reciprocity include Arizona, Maine, Michigan, Nevada, New Hampshire, New Mexico, Oklahoma, Rhode Island, and Vermont. Some states offer limited reciprocity. For example, they may allow out-of-state patients to possess but not purchase. Carry your card and ID.

Recent changes

Kentucky legalized medical marijuana in 2023. The program launched in 2025. Mississippi launched its program in 2023. Alabama is working on its program. Ohio legalized recreational marijuana in 2023, but its medical program remains. Federal law classifies marijuana as a Schedule I drug. Crossing state lines with marijuana is illegal.

How to verify current rules

State legislature websites and health department websites post current rules. The National Conference of State Legislatures (NCSL) tracks state medical marijuana laws. NORML also publishes a state-by-state guide. Check these sources before you travel or buy.