Is HHC-P (Hexahydrocannabiphorol) Legal in Rhode Island? (2026)

Illegal

As of November 12, 2026, HHC-P (Hexahydrocannabiphorol) is illegal to sell at retail in Rhode Island. HHC-P illegal in Rhode Island: hemp rule bars converting cannabinoids into other cannabinoids and selling them. Effective 2024-08-14. Controlling source: 560-RICR-10-20-1, Rhode Island Industrial Hemp Program -- Section 1.6(I) (prohibition on conversion/synthetic cannabinoids) and Section 1.5(A)(2) (Acceptable Hemp THC Level).

Verified November 12, 2026 (hash check) · confidence: confirmed

Is HHC-P Legal? Every state and federal law

Rhode Island HHC-P ban status: ban in force

Watchenforcement date in 28 days (H.R. 6500 (Pub. L. 119-103) / Pub. L. 119-37 Sec. 781)
Rule type
permanent
Tier
Prohibited
Effective
2024-08-14
Effectively prohibitive
HHC-P is made by converting THCP (itself converted) into another cannabinoid by hydrogenation, which 560-RICR-10-20-1 sec. 1.6(I) strictly prohibits along with its sale absent a Commission variance.

What the record says

Rhode Island's hemp rule, 560-RICR-10-20-1 sec. 1.6(I), strictly prohibits any conversion of cannabidiol or any other cannabinoid to delta-9 THC, any derivative form of THC, or any other cannabinoid, and the subsequent sale of such synthetic cannabinoids in the program, unless the Commission approves a variance. HHC-P is produced by hydrogenating THCP, which is itself made by conversion, so it is a converted cannabinoid within the ban. The rule is keyed to production method rather than a named list, so HHC-P is caught without being named, the same way HHC is.

Controlling language, verbatim

Any conversion of cannabidiol or any other cannabinoid to delta9-tetrahydrocannabinol, any derivative form of THC, or any other cannabinoid by any licensee and/or the subsequent sale of such synthetic cannabinoids in the Program is strictly prohibited unless an approved variance for such a process and/or sale is approved and issued by the Commission.

Source of excerpt

Citations

  1. 560-RICR-10-20-1, Rhode Island Industrial Hemp Program -- Section 1.6(I) (prohibition on conversion/synthetic cannabinoids) and Section 1.5(A)(2) (Acceptable Hemp THC Level) (Rhode Island Cannabis Control Commission (RI Department of State Code of Regulations), 2025-12-08) PRIMARYOFFICIAL
  2. 230-RICR-80-10-1 sec. 1.6(I), amendment effective August 14, 2024 (predecessor rule; effective-date provenance) (Rhode Island Department of State, 2026-07-25) PRIMARYOFFICIAL

Where HHC-P (Hexahydrocannabiphorol) stands across the country

LegalRestrictedGray areaIllegalNot yet verified

Among Rhode Island's 2 neighbors, Connecticut is illegal; Massachusetts is gray area.

Open the interactive map · Every compound in Rhode Island · Where HHC-P is banned · Hemp ban in Rhode Island · THC ban in Rhode Island · Federal hemp ban: what changes Nov 12 and Dec 11 · Embed this map

Federal posture

Federal gray area. HHC-P: not named federally; DEA treats hydrogenated cannabinoids as Schedule I THC, and from Nov 12, 2026 non-plant cannabinoids leave hemp Federal detail

Verbatim law on file for Rhode Island

8 instruments on file for this compound’s framework in Rhode Island; 2 of 2 citations above are official sources. Each text carries its source and a fingerprint that changes when the law does.

560-RICR-10-20-1 · Controlling provision (official text)OFFICIAL
Instrument
Controlling provision (official text)
Source
https://rules.sos.ri.gov/Regulations/part/560-10-20-1
Retrieved
2026-11-01
Fingerprint
447b5e5a02888355
1 mg of total THC per serving, 5 mg of total THC per package, or .3% total THC on a dry weight basis pursuant to the applicable product type.
560-RICR-10-20-1 (Industrial Hemp Program), 1.5, 1.8(I), 1.9, 1.11(B) · Controlling provision (official text)OFFICIAL
Instrument
Controlling provision (official text)
Source
https://rules.sos.ri.gov/Regulations/part/560-10-20-1
Retrieved
2026-11-01
Fingerprint
738c362c2589624d
Licensees may only send, sell, buy and/or receive industrial hemp, hemp seeds, hemp derivatives and hemp-derived consumable CBD products from another licensee or a certified source whether interstate or intrastate provided the sender and/or recipient’s products comply with the Act, the regulations of this Part and other applicable laws.
560-RICR-10-20-1 (RI Cannabis Control Commission - Industrial Hemp Program), Sec. 1.5 (Definitions), Sec. 1.6, and Sec. 1 Product Prohibitions · 560-RICR-10-20-1 - Rhode Island Industrial Hemp Program (Cannabis Control Commission): 'THC' and 'Industrial hemp' definitions, synthetic-cannabinoid prohibition, product prohibitions, and total-THC mg capsOFFICIAL
Instrument
560-RICR-10-20-1 - Rhode Island Industrial Hemp Program (Cannabis Control Commission): 'THC' and 'Industrial hemp' definitions, synthetic-cannabinoid prohibition, product prohibitions, and total-THC mg caps
Source
https://rules.sos.ri.gov/regulations/part/560-10-20-1
Retrieved
2026-07-02
Fingerprint
29becc53eff103a5
Sec. 1.5 Definitions:

LL. “THC” as used in this Part means THC as defined in R.I. Gen. Laws Sec. 2-26-3(13) and includes delta 9-tetrahydrocannabinol, the principal psychoactive constituent of cannabis, tetrahydrocannabinol acid and the natural or synthetic equivalents of the substances contained in the plant, or in the resinous extractives of, cannabis sativa L., or any synthetic substances, compounds, salts, or derivatives of the plant or chemicals and their isomers.

R. “Industrial hemp” or "hemp" means the plant Cannabis sativa L. and any part of that plant, including the seeds thereof and all derivatives, extracts, cannabinoids, isomers, acids, salts, and salts of isomers, whether growing or not, with a total delta-9 tetrahydrocannabinol concentration distribution range of not more than three-tenths percent (.3%) on a dry weight or per volume basis regardless of moisture content, and which satisfies the requirements of the Act as defined in R.I. Gen. Laws Sec. 2-26-3(8).

Sec. 1.5(A)(2) - Acceptable Hemp THC level (Post Harvest):
2. Post Harvest: The level of total THC, including THCa, all isomers and derivatives thereof in a given hemp-derived consumable product sample with results reported by an approved testing facility shall not exceed, unless otherwise permitted by the Commission: 1 mg of total THC per serving, 5 mg of total THC per package, or .3% total THC on a dry weight basis pursuant to the applicable product type.

Product Prohibitions:
H. Product Prohibitions
1. No hemp-derived consumable CBD product intended for retail sale shall:
a. Be in the shape of a human, animal, fruit, cartoon character, or any other shape that is especially attractive to children as determined by the Commission;
b. Be in the shape of a cannabis plant or leaf;
c. Be combined with alcohol, tobacco, nicotine, and/or any synthetic cannabinoids;

Sec. 1.6:
I. Any conversion of cannabidiol or any other cannabinoid to delta9-tetrahydrocannabinol, any derivative form of THC, or any other cannabinoid by any licensee and/or the subsequent sale of such synthetic cannabinoids in the Program is strictly prohibited unless an approved variance for such a process and/or sale is approved and issued by the Commission.
Show 5 more laws on file
560-RICR-10-20-1 Section 1.5(A)(2) · Rhode Island Industrial Hemp Program - Definitions - "Acceptable Hemp THC level"OFFICIAL
Instrument
Rhode Island Industrial Hemp Program - Definitions - "Acceptable Hemp THC level"
Source
https://rules.sos.ri.gov/regulations/part/560-10-20-1
Retrieved
2026-07-18
Fingerprint
362152222fa348ad
Post Harvest: The level of total THC, including THCa, all isomers and derivatives thereof in a given hemp-derived consumable product sample with results reported by an approved testing facility shall not exceed, unless otherwise permitted by the Commission: 1 mg of total THC per serving, 5 mg of total THC per package, or .3% total THC on a dry weight basis pursuant to the applicable product type.
560-RICR-10-20-1 Section 1.6(I) (conversion/synthetic-cannabinoid prohibition); Section 1.5(A)(2) (Acceptable Hemp THC Level) · Rhode Island Industrial Hemp Program -- Prohibition on conversion of cannabinoids and sale of synthetic cannabinoids; Acceptable Hemp THC LevelOFFICIAL
Instrument
Rhode Island Industrial Hemp Program -- Prohibition on conversion of cannabinoids and sale of synthetic cannabinoids; Acceptable Hemp THC Level
Source
https://rules.sos.ri.gov/regulations/part/560-10-20-1
Retrieved
2026-07-19
Fingerprint
f16d0e52c367607e
Section 1.6(I): Any conversion of cannabidiol or any other cannabinoid to delta9-tetrahydrocannabinol, any derivative form of THC, or any other cannabinoid by any licensee and/or the subsequent sale of such synthetic cannabinoids in the Program is strictly prohibited unless an approved variance for such a process and/or sale is approved and issued by the Commission. Section 1.5(A)(2) (Acceptable Hemp THC level, Post Harvest): The level of total THC, including THCa, all isomers and derivatives thereof in a given hemp-derived consumable product sample with results reported by an approved testing facility shall not exceed, unless otherwise permitted by the Commission: 1 mg of total THC per serving, 5 mg of total THC per package, or .3% total THC on a dry weight basis pursuant to the applicable product type.
560-RICR-10-20-1, 1.5(A)(2), 1.11(G)(1)(a), 1.11(K); R.I. Gen. Laws 2-26-3 · 560-RICR-10-20-1, 1.5(A)(2), 1.11(G)(1)(a), 1.11(K); R.I. Gen. Laws 2-26-3OFFICIAL
Instrument
560-RICR-10-20-1, 1.5(A)(2), 1.11(G)(1)(a), 1.11(K); R.I. Gen. Laws 2-26-3
Source
https://rules.sos.ri.gov/Regulations/part/560-10-20-1
Retrieved
2026-10-07
Fingerprint
8fee22cc17331a58
560-RICR-10-20-1: 1.11(G)(1)(a) “Raw hemp flower which may include raw hemp in pre-roll form;” 1.5(A)(2) [post-harvest limits] “1 mg of total THC per serving, 5 mg of total THC per package, or .3% total THC on a dry weight basis”. 1.11(K)(1) [A retail licensee] "shall only allow persons twenty-one (21) years of age or older to purchase hemp-derived consumable CBD products." R.I. Gen. Laws 2-26-3(9) [Hemp means] "the plant Cannabis sativa L. and any part of that plant," [with] "a delta-9 tetrahydrocannabinol concentration of not more than three-tenths percent (0.3%)". [History: P.L. 2025, ch. 278, art. 3, s. 1, eff. June 29, 2025; rule eff. 12/08/2025.] [Bracketed spans summarized.]
R.I. Gen. Laws Sec. 2-26-3 (Hemp Growth Act - Definitions) · R.I. Gen. Laws Sec. 2-26-3 - Definitions (Hemp Growth Act)MIRROR
Instrument
R.I. Gen. Laws Sec. 2-26-3 - Definitions (Hemp Growth Act)
Source
https://law.justia.com/codes/rhode-island/title-2/chapter-2-26/section-2-26-3/
Retrieved
2026-07-02
Fingerprint
d8dad2826b287271
When used in this chapter, the following terms shall have the following meanings:

(1) "Applicant" means any person, firm, corporation, or other legal entity who or that, on his, her, or its own behalf, or on behalf of another, has applied for permission to engage in any act or activity that is regulated under the provisions of this chapter.

(2) "Cannabidiol" or "CBD" means cannabidiol (CBD) derived from a hemp plant as defined in Sec. 2-26-3, not including products derived from exempt cannabis plant material as defined in 21 C.F.R. Sec. 1308.35.

(3) “Cannabis” means all parts of the plant of the genus marijuana, also known as marijuana sativa L. whether growing or not; the seeds thereof; the resin extracted from any part of the plant; and every compound, manufacture, salt, derivative, mixture, or preparation of the plant, its seeds, or resin regardless of cannabinoid content or cannabinoid potency including "marijuana" and “industrial hemp” or "industrial hemp products" which satisfy the requirements of this chapter.

(4) "Cannabis control commission" or “commission” means the Rhode Island cannabis control commission established by Sec. 21-28.11-4.

(5) “Cannabis office” or “office” means the cannabis office established by Sec. 21-28.11-18.1.

(6) “Division” means the division of agriculture in the department of environmental management.

(7) "Grower" means a person or entity who or that produces hemp for commercial purposes.

(8) “Handler” means a person or entity who or that produces or processes hemp or agricultural hemp seed into commodities or who manufactures hemp products.

(9) "Hemp" or “industrial hemp” means the plant Cannabis sativa L. and any part of that plant, including the seeds thereof and all derivatives, extracts, cannabinoids, isomers, acids, salts, and salts of isomers, whether growing or not, with a delta-9 tetrahydrocannabinol concentration of not more than three-tenths percent (0.3%) on a dry weight or per volume basis regardless of moisture content, and which satisfies the requirements of this chapter.

(10) “Hemp-derived consumable CBD product” means any product meant for ingestion, including, but not limited to, concentrates, extracts, and cannabis-infused foods and products, which contains cannabidiol derived from a hemp plant as defined in this section, which shall only be sold to persons age twenty-one (21) or older, and which shall not include products derived from exempt cannabis plant material as defined in 21 C.F.R. Sec. 1308.35.

(11) “Hemp products” or "industrial hemp products" means all products made from the plants, including, but not limited to, concentrated oil, cloth, cordage, fiber, food, fuel, hemp-derived consumable CBD products, paint, paper, construction materials, plastics, seed, seed meal, seed oil, and seed certified for cultivation, which satisfy the requirements of this chapter.

(12) "Licensed CBD distributor" means a person licensed to distribute hemp-derived consumable CBD products pursuant to this chapter.

(13) "Licensed CBD retailer" means a person licensed to sell hemp-derived consumable CBD products pursuant to this chapter.

(14) “THC” means tetrahydrocannabinol, the principal psychoactive constituent of cannabis.

(15) “THCA” means tetrahydrocannabinol acid.
R.I.G.L. 44-20-61 · Product restrictions on electronic nicotine-delivery system productsOFFICIAL
Instrument
Product restrictions on electronic nicotine-delivery system products
Source
https://webserver.rilegislature.gov/Statutes/TITLE44/44-20/44-20-61.htm
Retrieved
2026-10-07
Fingerprint
81fc50395983bf89
§ 44-20-61. Product restrictions on electronic nicotine-delivery system products. (a) For purposes of this section, the following terms shall have the following meanings: (1) “Characterizing flavor” means a distinguishable taste or aroma, other than the taste or aroma of tobacco or menthol, distinguishable by an ordinary consumer, imparted either prior to, or during, consumption of an electronic nicotine-delivery system product or component part thereof, including, but not limited to, tastes or aromas relating to any fruit, mint, wintergreen, chocolate, vanilla, honey, candy, cocoa, dessert, alcoholic beverage, herb, or spice or which impart a cooling or numbing sensation. The determination of whether an electronic nicotine-delivery system product has a characterizing flavor shall not be based solely on the use of additives, flavorings, or particular ingredients, but shall instead consider all aspects of a final product including, but not limited to, taste, flavor and aroma, product labeling, and advertising statements. A flavor shall be presumed to be a characterizing flavor if a dealer, manufacturer, or distributor has made a statement or claim directed to consumers or the public about such flavor, whether expressed or implied, that it has a distinguishable taste or aroma (other than the taste or aroma of tobacco or menthol). (2) “Flavored electronic nicotine-delivery system product” means any electronic nicotine-delivery system product that imparts a characterizing flavor. (b) The sale, or offer for sale of, or the possession with intent to sell or to offer for sale, flavored electronic nicotine-delivery system products to consumers within the state of Rhode Island is hereby prohibited. Compassion centers and licensed cultivators registered with the state of Rhode Island department of business regulation-office of cannabis regulation under chapter 28.6 of title 21 are exempt from this provision except as to products that contain, are made of, or are derived from tobacco or nicotine, natural or synthetic. History of Section. P.L. 2024, ch. 117, art. 6, § 17, effective January 1, 2025.

HHC-P (Hexahydrocannabiphorol) in neighboring states

HHC-P in 48 other states

Closest to HHC-P in Rhode Island

Same framework in Rhode Island

30 other compounds in Rhode Island

Cite this page

Compound Analytics. "Is HHC-P Legal in Rhode Island? Federal Change Dec 11 (2026)." Compound Laws, https://compoundlaws.com/compounds/hhcp/rhode-island/. Accessed November 13, 2026.

Compound Laws, published by Compound Analytics, reports the record: statutes verbatim, official citations, enforcement facts and verification dates. Nothing here is legal advice and nothing here describes how to get around a law. A jurisdiction with no verified row is reported as not yet verified, never as legal. Found an error? Corrections policy.

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