Short answer
It depends on where you live and how you plan to buy. If your state runs a medical cannabis program and you want to buy from a medical dispensary, pay lower taxes, or possess higher limits, you need an evaluation from a licensed clinician. If you are 21 or older in a state with adult-use legalization, you can buy cannabis from a recreational shop without any medical evaluation. Some states allow both paths at once. Others allow only one.
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You need an evaluation when
- Your state has a medical program and no adult-use market.
- You want a medical card to reduce sales tax or access medical-only products.
- You want legal protection for possession above recreational limits.
- You are under 21 and your state only allows medical patients under that age.
- You want to buy from a medical dispensary that serves cardholders only.
You can skip it when
- You are 21 or older in a state with a legal adult-use market.
- You plan to buy from a recreational dispensary or delivery service that follows state limits.
- You only want hemp-derived CBD products with less than 0.3 percent THC, which are legal under federal law.
What the evaluation involves
- Book an appointment with a clinician licensed in your state, in person or by telehealth if your state allows it.
- Bring photo ID, proof of state residency, and any medical records that support your qualifying condition.
- Describe your symptoms, prior treatments, and how cannabis might fit into your care.
- Answer questions about other medications, allergies, and mental health history.
- Receive a written certification if the clinician agrees cannabis may help.
- Submit that certification to your state health department and pay the registration fee.
- Wait for your card or letter to arrive, then use it at a licensed dispensary.
What to bring
- Government-issued photo ID
- Proof of residency, such as a utility bill or lease
- Medical records or a letter from a treating provider
- Payment for the visit and the state fee
- A list of current medications
What an evaluation is not
An evaluation is not a prescription. Clinicians in most states issue a certification or recommendation, and federal law still classifies cannabis as a Schedule I drug. The FDA has not approved cannabis for general medical use, though it has approved specific cannabis-derived drugs for narrow conditions. A certification protects you under state law, not federal law.
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