{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/thca/new-hampshire/","compound":{"slug":"thca","name":"THCa","same_as":"https://en.wikipedia.org/wiki/Tetrahydrocannabinolic_acid"},"jurisdiction":{"code":"NH","name":"New Hampshire"},"as_of":"2026-09-23","answer":"As of September 23, 2026, THCa is illegal to sell at retail in New Hampshire. Illegal: total-THC basis puts THCa flower over the 0.3% hemp ceiling. Effective 2023-10-07. Controlling source: RSA 439-A:4 (HB 611, 2023 Ch. 237 Sec. 6).","forms":[{"form":"all","label":"All forms","status":"illegal","state_status":null,"federal_overlay":false,"headline":"Illegal: total-THC basis puts THCa flower over the 0.3% hemp ceiling","rule_type":null,"tier":null,"schedule_class":null,"limit":{"type":"total_ban","value":null,"unit":null},"effective_date":"2023-10-07","verified_at":"2026-09-23","confidence":"confirmed","verbatim_excerpt":"Nothing in this chapter shall be construed to authorize the sale of products that are derived from hemp which contain natural or synthetic tetrahydrocannabinol (THC) greater than 0.3 percent on a dry weight basis, which appear in any formulation, including delta-8 THC, delta-9 THC, or any other THC isomer variant.","excerpt_source_url":"https://law.justia.com/codes/new-hampshire/title-xl/chapter-439-a/section-439-a-4/","citations":[{"title":"RSA 439-A:4 (HB 611, 2023 Ch. 237 Sec. 6)","url":"https://gc.nh.gov/rsa/html/XL/439-A/439-A-mrg.htm","pinpoint":null,"publisher":"Official state source","type":"gov","primary":true,"official":true},{"title":"RSA 439-A:4 Hemp-Derived Products Containing THC Prohibited","url":"https://gc.nh.gov/rsa/html/XL/439-A/439-A-4.htm","pinpoint":null,"publisher":"New Hampshire General Court","type":"statute","primary":true,"official":true}],"history":[{"date":"2026-09-23","field":"headline","from":"Restricted (effectively prohibitive): total-THC basis puts THCa flower over the 0.3% hemp ceiling","to":"Illegal: total-THC basis puts THCa flower over the 0.3% hemp ceiling"},{"date":"2026-09-23","field":"status","from":"illegal","to":"restricted"},{"date":"2026-09-23","field":"status","from":"restricted","to":"illegal"},{"date":"2026-09-23","field":"status","from":"restricted","to":"illegal"},{"date":"2026-09-23","field":"headline","from":"THCa flower illegal: aggregate total-THC basis","to":"Restricted (effectively prohibitive): total-THC basis puts THCa flower over the 0.3% hemp ceiling"},{"date":"2026-09-23","field":"status","from":"illegal","to":"restricted"},{"date":"2026-09-23","field":"effectively_prohibitive","from":"false","to":"true"},{"date":"2026-07-25","field":"effective_date","from":null,"to":"2023-10-07"}]}],"neighbors":[{"code":"ME","status":"legal"},{"code":"MA","status":"illegal"},{"code":"VT","status":"illegal"}],"laws":[{"citation":"N.H. Rev. Stat. Ann. Sec. 318-B:1","title":"Definitions (Controlled Drug Act) -- \"Controlled drug analog\" definition (subparagraph VI-a) and supporting \"Substantially similar in chemical structure\" definition (subparagraph XXXI-a)","official_url":"https://gc.nh.gov/rsa/html/XXX/318-B/318-B-1.htm","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"619a7ad66c8cea56f3548c7b99acc0555833c502a8a13a80053976fdc5561ce6"},{"citation":"N.H. Rev. Stat. Ann. Sec. 439-A:4","title":"Hemp-Derived Products Containing THC Prohibited.","official_url":"https://gc.nh.gov/rsa/html/XL/439-A/439-A-4.htm","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"09de293834a1b3f6d8bdc14898c85b2d2966ab84fe9df9d734e7aa20ad40ba3f"},{"citation":"RSA 439-A (current); SB 624 (2026) eff. 2027-01-01","title":"RSA 439-A (current); SB 624 (2026) eff. 2027-01-01","official_url":"https://bills.nhliberty.org/bills/2026/SB624/changes","source_label":"MIRROR","effective_date":null,"retrieved_date":"2026-10-07","text_hash":"ec3562db13983b2501f28e4d31e78ef1d9150b197be721409b292117f0013231"},{"citation":"RSA 439-A:1 through 439-A:4","title":"Chapter 439-A Hemp - Purpose; Definitions; Hemp Permitted; Hemp-Derived Products Containing THC Prohibited","official_url":"https://gc.nh.gov/rsa/html/XL/439-A/439-A-mrg.htm","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-19","text_hash":"b0ee62119ca750d9830d5b3f71a1b072151f219207955b75106fab4ee986286e"}]}