Washington State doesn’t technically issue a “medical marijuana card,” but it has a two-step system that works similarly. First, you get a written authorization from a licensed healthcare provider. Then, optionally but highly recommended, you register in the state’s medical cannabis authorization database to receive a recognition card. That card unlocks significant tax savings, higher possession limits, and stronger legal protections. Here’s how each step works.
Who Qualifies
Washington limits medical cannabis to patients with conditions severe enough to significantly interfere with daily living. The qualifying conditions are:
- Cancer
- HIV
- Multiple sclerosis
- Epilepsy or other seizure disorders
- Spasticity disorders
- Intractable pain (pain not relieved by standard treatments)
- Glaucoma not controlled by standard treatments
- Crohn’s disease with debilitating symptoms not relieved by standard treatments
- Hepatitis C with debilitating nausea or intractable pain
- PTSD
- Traumatic brain injury
- Diseases causing nausea, vomiting, wasting, appetite loss, cramping, seizures, muscle spasms, or spasticity when those symptoms aren’t relieved by standard treatments (this includes anorexia)
For several of these conditions, there’s a key requirement: standard treatments must have already failed or proven inadequate. Chronic pain alone doesn’t qualify unless it’s truly intractable, meaning conventional medications and therapies haven’t provided relief.
Step 1: Get an Authorization
Five types of healthcare providers can issue a medical cannabis authorization in Washington: medical doctors (MDs), osteopathic doctors (DOs), physician assistants (PAs), advanced registered nurse practitioners (ARNPs), and naturopathic doctors (NDs). Your provider needs to have an active Washington license and an established patient relationship with you, so a single cold-call appointment with a provider you’ve never seen may not be sufficient.
During the visit, your provider will evaluate whether your condition meets the state’s qualifying criteria. If it does, they’ll complete a written authorization form. This document is your baseline proof that you’re a legal medical cannabis patient. Even without going further, it grants limited protections, but the possession and growing limits are lower than what registered patients receive.
The cost of this appointment varies. Some primary care providers include it as part of a regular office visit, while clinics specializing in cannabis evaluations typically charge a flat fee. There’s no state-set price for the provider visit itself.
Step 2: Register for a Recognition Card
After receiving your authorization, you can register in the Washington Department of Health’s medical cannabis authorization database. This is done at a medically endorsed retail cannabis store. You’ll bring your authorization form and valid ID, and the retailer enters your information into the state database. You then receive a recognition card.
Registration is optional for adults but mandatory for patients under 18. For adults, though, skipping this step means missing out on the most valuable benefits of the medical program.
Why the Recognition Card Matters
The difference between having just an authorization and having a recognition card is substantial, both financially and legally.
Tax Savings
Washington’s recreational cannabis carries a 37% excise tax on top of standard sales tax. Registered patients with a recognition card are exempt from both. A 2024 law (HB 1453) extended the excise tax exemption to registered patients buying compliant medical products at endorsed stores. This means you could save roughly 45% or more compared to what a recreational buyer pays on the same product. Over the course of a year, that adds up fast.
Higher Possession and Growing Limits
The limits change depending on your registration status:
- Authorization only, no database registration: Up to 4 plants, 6 ounces of usable cannabis at home. Purchases from retail stores follow the same recreational limits.
- Registered in the database (standard): Up to 6 plants, 8 ounces of usable cannabis. You can purchase up to 3 ounces of usable cannabis, 48 ounces of solid edibles, 216 ounces of liquid products, or 21 grams of concentrates from a medically endorsed store.
- Registered with provider-recommended higher amounts: Up to 15 plants and 16 ounces of usable cannabis at home, if your provider determines your medical needs exceed the standard amounts and notes that on your authorization.
Registered patients can also buy up to three times the standard purchase limits at medically endorsed stores. No single housing unit can contain more than 15 plants total, regardless of how many patients live there.
Renewal Timelines
An adult authorization lasts up to one year from the date of issuance. After that, you’ll need to see your provider again for a new authorization and re-register at a medically endorsed store. For minor patients, authorizations expire after six months.
Don’t let your authorization lapse. Once it expires, your recognition card is no longer valid, and you lose access to medical purchase limits and tax exemptions until you renew.
Rules for Patients Under 18
Minors can qualify for medical cannabis in Washington, but with additional requirements. A parent or legal guardian must serve as the patient’s designated provider, meaning they are the one who purchases, possesses, and administers the cannabis on the minor’s behalf. The designated provider must be at least 21 years old.
Unlike adult patients, registration in the state database is mandatory for minors and their designated provider. Authorizations must be renewed every six months rather than annually.
Designated Providers for Adults
Adult patients can also name a designated provider if they’re unable to purchase or grow cannabis on their own. A designated provider must be 21 or older and formally agree to serve in that role. Only one designated provider can be assigned to a patient at a time, and a designated provider can only serve one patient at a time.
Out-of-State Cards
Washington does not have a reciprocity agreement for out-of-state medical cannabis cards. If you hold a card from another state, it won’t grant you medical patient status in Washington. You can still purchase cannabis recreationally (anyone 21 or older can), but you won’t receive tax exemptions or higher possession limits. If you’ve relocated to Washington, you’ll need to start the authorization process from scratch with a Washington-licensed provider.