US State

Cannabis and hemp laws

Wyoming

Recreational and medical marijuana illegal; THCA, delta-8, delta-10 and HHC illegal; hemp delta-9 restricted

Adult use
Illegal
Medical
Illegal
Last reviewed
May 27, 2026

Wyoming

Cannabinoid status board

All states and compounds

Delta-10 THC

Illegal

Limits

Delta-10 statutorily within the Wyoming THC definition and excluded as a synthetic substance. Sale and possession unlawful under W.S. 35-7-1031.

Key law

W.S. 11-51-101 (Hemp definition, as amended by 2024 SF 32); W.S. 35-7-1031 (Controlled Substances Act); Green Room v. Wyoming, 10th Cir. Oct. 27, 2025.

Effective

July 1, 2024

Full rules

Delta-8 THC

Illegal

Limits

Delta-8 is statutorily within the expanded Wyoming THC definition and excluded as a synthetic substance. Sale and possession outside the Wyoming Hemp Extract Act are unlawful under W.S. 35-7-1031.

Key law

W.S. 11-51-101 (Hemp definition, as amended by 2024 SF 32); W.S. 35-7-1031 (Controlled Substances Act); Green Room v. Wyoming, 10th Cir. Oct. 27, 2025.

Effective

July 1, 2024

Full rules

Delta-9 THC

Restricted

Limits

Hemp-derived delta-9 only lawful if finished product passes a total-THC test at or below 0.3% by weight. Marijuana-derived delta-9 illegal under W.S. 35-7-1031. Narrow Hemp Extract Act medical pathway requires neurologist certification.

Key law

W.S. 11-51-101 (Hemp, as amended by 2024 SF 32); W.S. 35-7-1031 (Controlled Substances Act); W.S. 35-7-1901 et seq. (Hemp Extract Act); Green Room v. Wyoming, 10th Cir. Oct. 27, 2025.

Effective

July 1, 2024

Full rules

HHC

Illegal

Limits

HHC named in the Wyoming THC definition and excluded as a synthetic substance. Sale and possession unlawful under W.S. 35-7-1031.

Key law

W.S. 11-51-101 (Hemp definition, as amended by 2024 SF 32); W.S. 35-7-1031 (Controlled Substances Act); Green Room v. Wyoming, 10th Cir. Oct. 27, 2025.

Effective

July 1, 2024

Full rules

THCA

Illegal

Limits

Total-THC standard at 0.3% by weight (post-decarboxylation). Most THCA flower fails. No state retail license framework. Marijuana penalties under W.S. 35-7-1031(c) apply to non-compliant product.

Key law

W.S. 11-51-101 et seq. (Wyoming Industrial Hemp Act, as amended by 2024 SF 32 / Senate Enrolled Act 24); W.S. 35-7-1031 (Controlled Substances Act); Green Room v. Wyoming, 10th Cir. Oct. 27, 2025.

Effective

July 1, 2024

Full rules

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Wyoming

Latest news and analysis

All news

Is THCA Legal in Wyoming in 2026? Delta 8 Rules & Complete Hemp Guide

Wyoming's SF0032 (2024) bans delta-8 in all product formats with no beverage exception; the Tenth Circuit upheld the ban in October 2025 and THCA flower is high-risk.

Wyoming 2025: Court Keeps Delta‑8 Ban While HB0267 Floats a 10 mg Beverage Carveout—Compliance in Limbo

A 2025 Wyoming court ruling kept the state's delta-8 ban while HB0267 proposes a 10 mg THC beverage carveout, leaving operators in split posture.

Is THCA Legal in Wyoming in 2026? Delta 8 Rules & Complete Hemp Guide

Wyoming's SF0032 (2024) bans delta-8 in all product formats with no beverage exception; the Tenth Circuit upheld the ban in October 2025 and THCA flower is high-risk.

Wyoming 2025: Court Keeps Delta‑8 Ban While HB0267 Floats a 10 mg Beverage Carveout—Compliance in Limbo

A 2025 Wyoming court ruling kept the state's delta-8 ban while HB0267 proposes a 10 mg THC beverage carveout, leaving operators in split posture.

FAQ

Common questions

Is marijuana legal in Wyoming?

Recreational marijuana is illegal in Wyoming. Medical marijuana is not legal.

Is THCA legal in Wyoming?

No, in practical terms. Wyoming's 2024 hemp rewrite (SF 32 / Senate Enrolled Act 24, effective July 1, 2024) replaced the federal delta-9-only test with a total-THC standard.

Is delta-8 THC legal in Wyoming?

No. Wyoming banned delta-8 THC and other psychoactive hemp isomers when Governor Mark Gordon signed Senate File 32 on March 7, 2024 (Senate Enrolled Act 24, effective July 1, 2024).

Is hemp-derived delta-9 THC legal in Wyoming?

Restricted. Wyoming treats delta-9 THC differently depending on source and total-THC concentration.

This is general information, not legal advice.

Seed Legality

Full prohibition state; viable marijuana seeds illegal; hemp cultivation only under a Wyoming Dept. of Agriculture license.
Hemp seeds
Restricted
Marijuana seeds
Illegal
Sale
Illegal
Transacting
Illegal
Gifting
Illegal

Wyoming has no medical or adult-use program and prohibits all cannabis above 0.3% THC, so selling, acquiring, or gifting viable marijuana seeds for cultivation is treated as a marijuana offense under Wyo. Stat. § 35-7-1031, and the state has layered on bans of intoxicating hemp derivatives (2023 delta-8 ban; 2024 SF0032 restrictions). The hemp exception at § 35-7-1063 covers 'all parts, seeds and varieties' of cannabis at ≤0.3% THC with no synthetics, but planting hemp seed lawfully requires a Wyoming Department of Agriculture hemp license under the state's USDA-approved plan (§ 11-51-101 et seq.). No Wyoming authority recognizes a collectible-seed exception for marijuana genetics.

Key law:
Wyo. Stat. §§ 35-7-1031, 35-7-1063; § 11-51-101 et seq.
Last reviewed:
July 3, 2026
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This section is provided for informational purposes only and is not legal advice. Seed laws change frequently — verify current law with qualified counsel before making decisions.
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