Washington State has had legal medical cannabis since 1998, making it one of the earliest adopters in the country. Its program has matured significantly over the decades, and today it operates through a well-regulated recognition card and database system managed by the Washington State Department of Health (DOH). For families of children with serious illnesses, the question is timely: can minors get a Medical Marijuana Card in Washington? Yes — and importantly, registration is not optional for minor patients like it is for adults.
This guide explains Washington’s 2026 requirements, designated provider rules, qualifying conditions, and what families need to know before starting the process.
Washington’s Medical Cannabis System: How It Works
Washington’s medical cannabis program underwent major reform with the Cannabis Patient Protection Act (SB 5052) in 2015, which established the state’s authorization database and recognition card system. The program was further updated with a new Medical Cannabis Registry (MCR) that went live on July 1, 2025.
Washington’s system differs from most states in how the card is issued. Rather than applying to a government office, patients and their designated providers:
- Obtain a Medical Cannabis Authorization Form from a licensed healthcare practitioner.
- Take that form to a medically-endorsed cannabis retailer.
- A trained Medical Cannabis Certified Consultant (MCCC) at the store enters the patient into the authorization database and issues a recognition card on the spot.
As of 2026, there are 668 certified consultants and 317 medically-endorsed stores across the state. There are 255 stores that have actively issued cards in the most recent quarter.
Can a Minor Get a Medical Marijuana Card in Washington?
Yes. Washington’s medical cannabis law explicitly states that practitioners can authorize cannabis use for patients regardless of age, provided it is medically appropriate under state standards of care (per RCW 69.51A.030).
However, key differences apply to minor patients:
- Registration in the authorization database is mandatory for minors. Adult patients may opt out of the database and still use their authorization at non-endorsed retailers — but minors have no such option.
- A designated provider who is at least 21 years old must be named on the minor’s authorization form.
- The designated provider must be a parent or legal guardian of the minor (or a person the patient has formally designated).
- Washington allows only one designated provider per patient at a time.
- Minor patients must renew their authorization every 6 months — compared to annual renewal for adults.
The designated provider signs their own copy of the authorization form and must enter the database alongside the minor patient. At KIF Doctors, our practitioners can help families obtain valid authorization forms and understand the database enrollment process.
Designated Providers: Washington’s Version of Caregivers
Washington uses the term “designated provider” instead of caregiver. The role is functionally similar — the designated provider can:
- Legally purchase medical cannabis on behalf of the minor
- Grow cannabis plants for the patient (if the patient is registered to grow)
- Possess and transport cannabis for the patient
Important designated provider rules in Washington:
- Must be at least 21 years old
- Must be the minor’s parent or legal guardian (or a designated individual approved by the parent or guardian)
- Can only serve one patient at a time
- Must have an authorization card (recognition card) from a medically-endorsed store
- Must present their recognition card — along with two authorization forms (one for the patient, one for themselves) — when purchasing cannabis for the minor
This makes Washington’s designated provider process one of the more document-intensive among states, but it ensures tight control over minor patient access.
Qualifying Conditions in Washington
Washington recognizes 12 qualifying medical conditions, including 11 specific illnesses and a broader category covering diseases causing specific symptoms. Qualifying conditions include:
- Cancer
- HIV/AIDS
- Multiple sclerosis
- Epilepsy and intractable seizures
- Crohn’s disease (with debilitating symptoms unresponsive to standard treatment)
- Glaucoma (unrelieved by standard treatments)
- Hepatitis C (with debilitating nausea or intractable pain)
- Anorexia and wasting diseases
- Intractable pain
- PTSD
- Traumatic brain injury (TBI)
Additionally, any disease causing nausea, vomiting, wasting, appetite loss, cramping, seizures, muscle spasms, or spasticity qualifies when those symptoms are unresponsive to standard therapies.
Washington’s qualifying conditions can only be changed through legislation — there is no petition process available to residents.
The Authorization Form: What Families Need
A valid Medical Cannabis Authorization Form in Washington must be:
- Issued by a licensed healthcare practitioner who has a patient-practitioner relationship with the minor
- Printed on tamper-resistant paper (a specific requirement unique to Washington)
- Signed by the practitioner and the patient (or designated provider, in the case of a minor)
Designated providers sign their own version of the form — both forms are required when a minor patient is enrolled in the database.
Pricing in Washington: What to Expect in 2026
Washington’s costs for the medical cannabis program are straightforward:
- Physician or practitioner authorization fee: Varies by provider — visit KIF Doctors’ pricing page
- Database enrollment and recognition card: Handled at a medically-endorsed store; fees vary by retailer
- Product costs: Tax-free at medically-endorsed retailers for registered patients — a major advantage over recreational cannabis, which is subject to Washington’s standard cannabis excise tax
Medical cannabis cardholders in Washington can also purchase up to three times the standard possession limits compared to non-patient recreational users.
What Changes When a Minor Turns 18?
At 18, a patient in Washington transitions from mandatory to optional registration. They no longer need a designated provider, can manage their own authorization, and can purchase cannabis from both medically-endorsed and non-endorsed retailers (using their authorization without database registration, if they choose).
For more helpful guides on state-specific medical cannabis rules, visit KIF Doctors’ blog.
Get Started with KIF Doctors
Can minors get a Medical Marijuana Card in Washington? Absolutely — and for minor patients, registration is mandatory, so starting the process with a licensed practitioner is the necessary first step.
Schedule a telehealth appointment with KIF Doctors to obtain your child’s Medical Cannabis Authorization Form and begin enrollment in Washington’s updated 2025 Medical Cannabis Registry.
Frequently Asked Questions (FAQ)
Is registration in Washington’s medical cannabis database optional for minors?
No — database registration is mandatory for all minor patients in Washington, unlike adults for whom it is optional.
How often does a minor patient’s authorization need to be renewed in Washington?
Minor patients must renew their authorization every 6 months; adult patients renew annually.
Can a designated provider serve multiple minor patients in Washington?
No — Washington allows each designated provider to serve only one patient at a time.
Does the authorization form have any special requirements in Washington?
Yes — authorization forms must be printed on tamper-resistant paper and signed by both the practitioner and the patient (or their designated provider).
Are purchases tax-free for minor medical patients in Washington?
Yes — registered patients purchasing from medically-endorsed retailers are exempt from standard cannabis excise taxes.
Authoritative Sources
- Washington State Department of Health – Medical Cannabis Information for Patients
- Washington State Department of Health – Medical Cannabis Program Overview
- RCW 69.51A.030 – Medical Cannabis Authorization
