{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/thcp/michigan/","compound":{"slug":"thcp","name":"THCP","same_as":"https://en.wikipedia.org/wiki/Tetrahydrocannabiphorol"},"jurisdiction":{"code":"MI","name":"Michigan"},"as_of":"2026-10-07","answer":"As of October 7, 2026, THCP is legal to sell at retail with restrictions in Michigan. THCP restricted: captured as THC isomer, CRA channel.","forms":[{"form":"all","label":"All forms","status":"restricted","state_status":null,"federal_overlay":false,"headline":"THCP restricted: captured as THC isomer, CRA channel","rule_type":null,"tier":null,"schedule_class":null,"limit":null,"effective_date":null,"verified_at":"2026-10-07","confidence":"confirmed","verbatim_excerpt":"'THC' means any of the following: (i) Tetrahydrocannabinolic acid. (ii) ... a tetrahydrocannabinol, regardless of whether it is artificially or naturally derived. (iii) A tetrahydrocannabinol that is a structural, optical, or geometric isomer ... 'Marihuana' ... (vii) A product with a THC concentration of more than 0.3% on a dry-weight or per volume basis ...","excerpt_source_url":"https://codes.findlaw.com/mi/chapter-333-health/mi-comp-laws-333-27953/","citations":[],"history":[{"date":"2026-09-23","field":"status","from":"illegal","to":"restricted"},{"date":"2026-09-23","field":"status","from":"restricted","to":"illegal"}]}],"neighbors":[{"code":"IN","status":"restricted"},{"code":"OH","status":"illegal"},{"code":"WI","status":"gray"}],"laws":[{"citation":"MCL 286.850(2)(f), 286.851(2) (Industrial Hemp Research and Development Act, Act 547 of 2014)","title":"MCL 286.850(2)(f), 286.851(2) (Industrial Hemp Research and Development Act, Act 547 of 2014)","official_url":"https://capitol.legislature.mi.gov/documents/mcl/pdf/MCL-ACT-547-OF-2014.pdf","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-10-07","text_hash":"d3c33a2611a4745e25e0d5758ee502b4606a3bfa71790bde4a7c86587564f4c4"},{"citation":"MCL 333.27953(f), (h), (aa)","title":"Michigan Regulation and Taxation of Marihuana Act - Definitions of 'industrial hemp,' 'marihuana,' and 'THC'","official_url":"https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-333-27953","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-19","text_hash":"37f0ad7f2e46842606647b200154152ebd010634a6862fd9c924531165894bc5"},{"citation":"MCL 333.27953(f), (h)(vii)-(viii), (aa)","title":"Michigan Regulation and Taxation of Marihuana Act - Definitions of 'industrial hemp,' 'marihuana,' and 'THC'","official_url":"https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-333-27953","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-18","text_hash":"37f0ad7f2e46842606647b200154152ebd010634a6862fd9c924531165894bc5"},{"citation":"Mich. Comp. Laws Sec. 333.27953 (Michigan Regulation and Taxation of Marihuana Act; Definitions)","title":"Definitions -- 'Industrial hemp' (subsection (f)), 'Marihuana' (subsections (h)-(i)), and 'THC' (subsection (aa))","official_url":"https://www.legislature.mi.gov/documents/mcl/pdf/mcl-Initiated-Law-1-of-2018.pdf","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"e8c0162c5008c928c54edfbe8dc2e2b6afd3013e3b8047fd467f60b191c5db65"}]}