{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/thca/hawaii/","compound":{"slug":"thca","name":"THCa","same_as":"https://en.wikipedia.org/wiki/Tetrahydrocannabinolic_acid"},"jurisdiction":{"code":"HI","name":"Hawaii"},"as_of":"2026-10-07","answer":"As of October 7, 2026, THCa is illegal to sell at retail in Hawaii. THCa flower illegal - scheduled / named ban. Effective 2025-03-01.","forms":[{"form":"all","label":"All forms","status":"illegal","state_status":null,"federal_overlay":false,"headline":"THCa flower illegal - scheduled / named ban","rule_type":"emergency","tier":"schedule_i","schedule_class":null,"limit":{"type":"total_ban","value":null,"unit":null},"effective_date":"2025-03-01","verified_at":"2026-10-07","confidence":"confirmed","verbatim_excerpt":"Hemp flower material, hemp leaf, hemp cigarettes ... intended to be smoked or inhaled are prohibited (HAR 11-37)","excerpt_source_url":"https://health.hawaii.gov/hempprogram/files/2026/04/11-37_InterimHempRulesSummaryFinal-v3_4-2026.pdf","citations":[],"history":[]}],"neighbors":[],"laws":[{"citation":"Haw. Admin. R. 11-37-3","title":"Prohibited manufactured hemp products","official_url":"https://health.hawaii.gov/hempprogram/consumers-of-mhp-faq/","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-10-07","text_hash":"235db61e54f06edc55cef3872313b80e17958219ebebcd020ea9003fbce7f2ef"},{"citation":"Haw. Admin. R. 11-37-3(e)-(f) (am. and comp. 2026-01-28); HRS ch. 328G","title":"Haw. Admin. R. 11-37-3(e)-(f) (am. and comp. 2026-01-28); HRS ch. 328G","official_url":"https://health.hawaii.gov/hempprogram/files/2026/02/Standard11-37HAR-20260128.pdf","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-10-07","text_hash":"7e1f52470eecfb581ec8c0ec3a063f45de52602c8d151f79f148eef5fd2ca4b4"},{"citation":"Haw. Admin. R. Sec.11-37-3","title":"Prohibitions on Sale","official_url":"https://health.hawaii.gov/hempprogram/consumers-of-mhp-faq/","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-19","text_hash":"235db61e54f06edc55cef3872313b80e17958219ebebcd020ea9003fbce7f2ef"},{"citation":"HRS 328G-1","title":"Definitions","official_url":"https://www.capitol.hawaii.gov/hrscurrent/Vol06_Ch0321-0344/HRS0328G/HRS_0328G-0001.htm","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"823a943b28b715ded5f3b33a1fa53000404e41d2df6e655def917eb16170b8dd"}]}