Cannabis laws · Verified July 2026

Is cannabis legal in Hawaii?

Medical

For medical use, yes. Hawaii has a medical cannabis program for qualifying patients; recreational use remains illegal. Small-amount possession by adults is decriminalized (civil penalty, no jail).

Comprehensive medical program (HRS ch. 329, Part IX) plus decrim of trace amounts; NO adult-use law. The 2026 Senate legalization/low-dose bills again died in the House.

What this status means: Medical status means a state program lets qualifying patients (and usually caregivers) possess cannabis from licensed sources, typically with a card or certification. Outside the program, possession stays subject to the state's criminal or civil penalties shown below. "Decriminalized" here means small-amount possession carries no jail and no criminal record statewide, only a civil fine at most.

The facts, with sources

Possession: Patients: 4 oz usable + 10 plants. Others: ≤3g = $130 civil; >3g–<1oz petty misdemeanor; 1oz–<1lb misdemeanor; ≥1lb/25+ plants felony.
Decriminalized: Yes
Home cultivation: Yes Registered in-state patients (or caregiver) may grow up to 10 plants total, combined, only at the DOH address on file. Out-of-state/temporary 329 patients may NOT cultivate.
Medical reciprocity: Yes Out-of-state MMJ cardholders must obtain a temporary Hawaii 329 registration ($49.50, valid up to 60 days, renewable once per calendar year) before purchasing; a home-state card alone is not honored, and out-of-state patients cannot grow.

Sources

HRS § 712-1249, Promoting a detrimental drug in the third degree (opens in new tab) primary accessed 2026-07-03
HRS § 712-1247, Promoting a detrimental drug in the first degree (opens in new tab) primary accessed 2026-07-03
HRS § 329-121, Definitions (opens in new tab) primary accessed 2026-07-03
Hawaii Dept. of Health, Medical Cannabis Registry: Out-of-State Patient Application ($49.50, 60 days) (opens in new tab) primary accessed 2026-07-03
NORML: Hawaii Laws and Penalties (possession-tier cross-check) (opens in new tab) cross-check accessed 2026-07-03

Verified July 4, 2026

How federal law applies

Cannabis (termed "marijuana" in federal law) generally remains a Schedule I controlled substance. Only FDA-approved products and cannabis held under a qualifying state medical license have been moved to Schedule III (rule effective April 28, 2026); the broader Schedule I-to-III transfer is not finalized and remains pending in DEA's expedited rescheduling rulemaking.

Under the December 18, 2025 Executive Order on "Increasing Medical Marijuana and Cannabidiol Research," DOJ/DEA announced on April 23, 2026 that it was placing FDA-approved cannabis products and state-licensed medical cannabis into Schedule III (rule effective April 28, 2026) but left all other cannabis (unlicensed adult-use, bulk material, and synthetic THC) in Schedule I, and opened an expedited rulemaking (Federal Register, April 28, 2026) to consider rescheduling more broadly. A DEA administrative law judge began hearing evidence in that rulemaking on June 29, 2026; as of this site's last verification of this section, no final rule rescheduling cannabis generally had been issued. State-legal cannabis programs are unchanged by these developments and continue to operate under their own state laws.

A note on terminology: federal statute uses "marijuana" (spelled "marihuana" in the Controlled Substances Act) for what scientific and healthcare literature calls cannabis. This site uses "cannabis" except when quoting official sources.

Federal section verified July 30, 2026 · sources on the map page

Other states with this status

Hawaii has no bordering US states; these share its status.

See Hawaii on the interactive map, or compare all 50 states and DC.

This information is for educational purposes only and is not legal advice. Cannabis laws change frequently and details (limits, licensing, local rules) vary within states. Always confirm against the linked primary sources or a licensed attorney in your state.

Methodology, sources & AI use

Each jurisdiction was researched against at least two sources: the controlling state statute or state agency page, cross-checked against an aggregate policy tracker. Every state was then independently re-derived in a second, blind research pass, and every disagreement and every nuanced case (low-THC programs, varies flags, recent law changes, DC) was resolved by a third review against primary sources. Access dates are recorded per source and a verification date is shown per state. US territories are not yet covered.

The underlying dataset is available as JSON under a CC BY 4.0 license (opens in new tab); reuse it with attribution and a link back.

How AI was used: This dataset and page were built with substantial help from AI (Anthropic's Claude), directed and reviewed by a human editor. AI research agents gathered the statutes and agency pages cited for each state; a second, independent AI pass re-derived every state's facts without seeing the first pass; and a third pass resolved all disagreements against primary sources. Every cited link was then opened and checked in a real web browser, and dead or outdated citations were corrected by hand before publication. AI can still make mistakes, and laws change quickly.

Spotted an error? Reach out via the contact page and it will be checked against the primary sources and corrected.

Dataset updated July 2026.