Your Complete Guide to Medical Cannabis in Hawaii
Hawaii is a medical-only state. Recreational cannabis is illegal. Since 2000, registered 329 cardholders can access dispensaries, grow at home, and possess up to 4 ounces — but everyone else faces criminal penalties. DOH-sourced information for patients and visitors.
Hawaii Has NOT Legalized Recreational Cannabis
Recreational cannabis is illegal in Hawaii. Unlike most of the West Coast and many blue states, Hawaii's House of Representatives has blocked every legalization bill — even after the Senate passed measures in 2022, 2023, and 2024 (SB 3335 passed 19–6). Without a 329 medical card, possessing any amount over 3 grams is a criminal offense.
Hawaii did decriminalize possession of 3 grams or less in 2020, reducing it to a $130 fine with no criminal record. But 3 grams is the smallest decriminalized amount of any state in America. Anything above that threshold carries jail time.
You need a valid 329 card to legally buy, possess, or grow cannabis in Hawaii. Cards cost $38.50/year and are now open to any medical condition (since July 2025).
Out-of-state patients with a valid home-state medical card can apply for a temporary 329V card ($49.50, 60 days). Apply online up to 60 days before arrival.
Transporting cannabis between islands is explicitly prohibited by HRS §329-122 — even for registered patients. Airports are federal property. Purchase separately on each island.
Without a medical card, possessing over 3 grams is a crime. Even 1 ounce without a card is a misdemeanor: up to 1 year in jail and a $2,000 fine.
Hawaii Cannabis Law at a Glance
Hawaii's Cannabis Tax: Just 4% GET
Hawaii imposes no special cannabis excise tax. Medical cannabis is taxed only at the standard 4% General Excise Tax (plus up to 0.5% county surcharge), generating $14.4 million in total revenue through 2024. State projections estimate recreational legalization could bring $82 million annually.
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