{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/thcp/montana/","compound":{"slug":"thcp","name":"THCP","same_as":"https://en.wikipedia.org/wiki/Tetrahydrocannabiphorol"},"jurisdiction":{"code":"MT","name":"Montana"},"as_of":"2026-10-22","answer":"As of October 22, 2026, THCP is illegal to sell at retail in Montana. THCP illegal: synthetic-cannabinoid ban (HB 49).","forms":[{"form":"all","label":"All forms","status":"illegal","state_status":null,"federal_overlay":false,"headline":"THCP illegal: synthetic-cannabinoid ban (HB 49)","rule_type":null,"tier":null,"schedule_class":null,"limit":{"type":"total_ban","value":null,"unit":null},"effective_date":null,"verified_at":"2026-10-22","confidence":"confirmed","verbatim_excerpt":"'Hemp' means the plant Cannabis sativa L. and any part of that plant ... with a total delta-9 tetrahydrocannabinol concentration of not more than 0.3% on a dry weight basis. ... [SB 375] an edible product containing a hemp product containing total delta-9 tetrahydrocannabinol (THC) may not be sold to a consumer in the state ... The term does not include synthetic cannabinoids.","excerpt_source_url":"https://archive.legmt.gov/bills/mca/title_0800/chapter_0180/part_0010/section_0010/0800-0180-0010-0010.html","citations":[],"history":[]}],"neighbors":[{"code":"ID","status":"illegal"},{"code":"ND","status":"illegal"},{"code":"SD","status":"illegal"},{"code":"WY","status":"illegal"}],"laws":[{"citation":"MCA 50-31-239 (Ch. 394, L. 2025)","title":"MCA 50-31-239 (Ch. 394, L. 2025)","official_url":"https://mca.legmt.gov/bills/mca/title_0500/chapter_0310/part_0020/section_0390/0500-0310-0020-0390.html","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-10-07","text_hash":"afea97d39b8b731dcb3ecdbbd3c29c6df2dc8a370ca7353a40e2eef5de0e7a24"},{"citation":"Mont. Code Ann. Sec. 16-12-117 (as amended by HB 49, 2025)","title":"16-12-117. Synthetic marijuana cannabinoid products prohibited -- restriction on sale of marijuana products (as amended by House Bill 49, 2025)","official_url":"https://legiscan.com/MT/text/HB49/id/3182505/Montana-2025-HB49-Enrolled.pdf","source_label":"MIRROR","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"ea28971c4ae4608f7251ceae40d0396b27e9b74e2b0a9ff5c60df8345cd2c96d"},{"citation":"Mont. Code Ann. Sec. 80-18-101","title":"80-18-101. Definitions.","official_url":"https://archive.legmt.gov/bills/mca/title_0800/chapter_0180/part_0010/section_0010/0800-0180-0010-0010.html","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"1ab6e67032f4800eaf6725306a378f1bdb25cce961cff7fc1d8055b3e0840641"},{"citation":"Mont. Code Ann. Section 16-12-117","title":"Synthetic cannabinoid products prohibited -- restriction on sale of marijuana products","official_url":"https://mca.legmt.gov/bills/mca/title_0160/chapter_0120/part_0010/section_0170/0160-0120-0010-0170.html","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-18","text_hash":"01c86a217f93b007e42eb0d8f924f1c3106b88d13b6c2962079084d6f47b5d8b"},{"citation":"Mont. Code Ann. Section 16-12-117; Section 16-12-102(39)","title":"Synthetic cannabinoid products prohibited; Definition of synthetic cannabinoid","official_url":"https://mca.legmt.gov/bills/mca/title_0160/chapter_0120/part_0010/section_0170/0160-0120-0010-0170.html","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-19","text_hash":"10a325a11e8c81bd8196d56cc166a0ca0957522b6c1f5698e973ffb63fb1b294"},{"citation":"Mont. SB 375 (2025), codified at Title 50, ch. 31, part 2","title":"Senate Bill No. 375 (2025) -- Sale of edible hemp product containing THC to consumers prohibited","official_url":"https://legiscan.com/MT/text/SB375/id/3215609/Montana-2025-SB375-Enrolled.pdf","source_label":"MIRROR","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"0590d766658585955c1dfb6cb6a48bb859b6f92b159a206ac5e64ccccfa13b5a"}]}