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Updated 14/08/2025
Yes. Marijuana is legal in Washington in 2025 for adult use under Initiative 502, which permits adults 21 and older to possess and use cannabis subject to state rules administered by the Washington State Liquor and Cannabis Board (LCB).
In Washington, adults 21 and older may possess up to 1 ounce of usable cannabis, up to 16 ounces of cannabis-infused product in solid form, up to 72 ounces of cannabis-infused product in liquid form, and up to 7 grams of cannabis concentrate; possession above these limits may result in criminal penalties under the state’s Uniform Controlled Substance Act.
Under Washington law, recreational home cultivation is not permitted. Only qualified patients or designated providers who hold a valid medical cannabis authorization may grow plants for medical use; the standard limit is six plants, and a health care professional may authorize up to fifteen plants when medically necessary, as provided in RCW 69.51A.210. Additionally, no more than fifteen plants may be grown or located within a single housing unit except as specified by law, per RCW 69.51A.260. Any cultivation for commercial purposes requires licensure from the LCB and is unlawful without such authorization.
The penalties for marijuana-related offenses in Washington vary depending on the amount of marijuana involved and the nature of the offense. Possession of more than one ounce but less than 40 grams is considered a misdemeanor and can result in a fine of up to $1,000 and/or imprisonment for up to 90 days. Possession of more than 40 grams is considered a felony and can result in more severe penalties, including higher fines and longer prison sentences.
Under Washington law, a medical cannabis authorization may be issued by the following Washington-licensed health care professionals:
Patients must receive a valid authorization from one of these professionals before a recognition card can be issued.
No. Public smoking or vaping is prohibited under the state’s Smoking in Public Places Law; marijuana consumption may not occur in public settings. See RCW 70.160.030 at the Washington Smoking in Public Places Law.
Adults 21 and older may purchase cannabis from licensed retailers with valid government-issued identification. Retailers must verify age before sale.
Felony charges may apply depending on the conduct and amount (for example, possession above legal limits or unlicensed distribution). Penalties vary by statute and case circumstances.
Outcomes range from civil infractions to criminal charges depending on factors such as quantity, location, and intent. Penalties are determined under state law.
Fines vary by offense and jurisdiction. Consult the applicable state statute and local court schedules for specific amounts.
Yes. Adult-use cannabis edibles are legal when produced and sold by licensed businesses and must comply with state packaging, labeling, and potency rules.
Yes. Hemp-derived products with no more than 0.3% delta-9 THC are lawful under federal hemp provisions.