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Wyoming

Cannabis laws & medical marijuana program in Wyoming

No legal program

By Laura H. Meyer

MEDICAL

Not legal
Medical cannabis is not legal in Wyoming.

RECREATIONAL

Not legal
Min age 18
Adult-use cannabis is not legal in Wyoming. Possession remains a criminal offense — see Sources below for the current penalty schedule.

HEMP

Conditional

STATUS

CBD
Legal
Delta-8 THC
Banned
Delta-10 THC
Banned
THCa
Banned

RULES

Retail rules
Wyoming aligns with the 2018 Federal Farm Bill on industrial hemp (0.3% delta-9 THC by dry weight) for cultivation under W.S. § 11-51-101 et seq. HB 134 (2024) classified delta-8 THC, delta-10 THC, THC-O, HHC and similar synthetic/converted cannabinoids as controlled substances effective July 2024. Industrial-hemp CBD remains legal at general retail subject to labeling.
Notes
Wyoming HB 134 (2024) followed years of executive-branch advisories from the Wyoming Attorney General and the Department of Health treating intoxicating-hemp isomers as controlled substances. The Wyoming Highway Patrol I-80 corridor enforcement frequently includes hemp-derived product seizures.

Overview

Wyoming has no medical-cannabis program and prohibits adult-use cannabis statewide. Cannabis remains a Schedule I controlled substance under the Wyoming Controlled Substances Act (Wyoming Statutes Title 35 Chapter 7 Article 10). Wyoming permits hemp and CBD products containing 0.3% THC or less consistent with the federal 2018 Farm Bill.

Multiple medical-cannabis bills have been introduced in recent legislative sessions without enactment. Ballot-initiative efforts to authorize medical or adult-use cannabis have failed to qualify due to Wyoming's high signature-gathering requirements distributed across a majority of the state's counties.

Medical status

Wyoming operates no medical-cannabis program. There is no patient registry, no qualifying-condition list, no licensed-dispensary system, and no statutory protection from criminal-possession liability for patients certified under another state's medical program.

Recreational status

Recreational cannabis is illegal statewide. Penalties under Wyoming Statutes §35-7-1031:

  • Possession ≤3 oz plant or ≤3/10 oz hashish: misdemeanor. Up to 12 months jail and $1,000 fine.
  • Possession over those thresholds: felony. Up to 5 years and $10,000.
  • Manufacture or delivery: felony with penalties scaling by quantity.
  • Edibles: Wyoming has prosecuted edibles and concentrates aggressively under "possession of THC" felony provisions where the quantity of THC by weight is treated as the controlled-substance threshold; this has produced felony exposure for relatively small quantities of edibles brought from neighboring legalized states.

Wyoming highway-patrol enforcement at state borders with Colorado, Montana, Utah, Idaho, Nebraska, and South Dakota is active.

CBD and hemp

Wyoming permits possession of CBD products containing 0.3% THC or less derived from compliant hemp. The state has limited authorization for low-THC oil (with a physician's recommendation) for narrow seizure conditions, but operational access is constrained and there is no in-state dispensing infrastructure.

Patients and caregivers

Wyoming recognizes no patient or caregiver category. The state has no qualifying-condition list, no patient ID card, no licensed dispensaries, and no caregiver designation. Families seeking access for pediatric epilepsy or other refractory conditions have no in-state pathway and historically rely on out-of-state purchase, which carries federal interstate-transport exposure.

Reciprocity and visiting patients

Wyoming does not extend reciprocity to any out-of-state medical-cannabis program. Visiting patients carrying medical cards from Colorado, Montana, New Mexico, or any other state receive no protection. Possession remains a misdemeanor or felony depending on quantity and product type. The state's "possession of THC" felony provision is particularly harsh for visitors carrying edibles or concentrates: the gross product weight rather than active-THC weight has been used as the felony threshold in some cases.

Employment and workplace

Wyoming is an at-will employment state with no statutory cannabis protection. Employers may discipline or terminate workers for positive THC tests. Workers' compensation claims may be denied when post-incident testing returns positive. Public-employee positions, federal-contractor roles, and CDL holders face additional federal-rule exposure. Wyoming has no statutory "lawful off-duty activity" defense for cannabis or CBD.

Hemp-derived intoxicants

Wyoming aligns with the federal Farm Bill on industrial hemp (cannabis with 0.3% THC or less by dry weight). Retail availability of intoxicating hemp-derived cannabinoids has been more constrained than in many states. Wyoming has historically treated delta-8 THC and related compounds as controlled substances under state law where the source-extract THC content exceeds the hemp threshold. Enforcement varies but the legal posture is more restrictive than Colorado, Montana, or Nevada.

Recent legislative history

Medical-cannabis legislation has been introduced in Wyoming sessions repeatedly:

  • 2025 session: HB 0072 and SF 0033 (medical cannabis) died in committee.
  • 2026 session: SF 0029 (medical cannabis) and HB 0106 (decriminalization) followed the same trajectory.

Ballot-initiative organizing through the Wyoming NORML chapter and the Wyoming Patients Coalition has been blocked by signature-distribution requirements: a Wyoming initiative requires signatures equal to 15% of the prior gubernatorial vote, distributed across two-thirds of the state's counties. Wyoming's small and geographically dispersed population makes this threshold the highest effective barrier in the country.

The April 2026 federal Schedule III rescheduling order produced no Wyoming legislative response. State officials publicly reaffirmed that federal scheduling does not affect Wyoming criminal law.

Federal context

Out-of-state medical-cannabis cards confer no legal protection in Wyoming. Federal jurisdiction layers additional exposure on federal land (which includes a substantial fraction of Wyoming's land area: Yellowstone National Park, Grand Teton National Park, Bureau of Land Management land, and Bridger-Teton National Forest). I-25, I-80, and I-90 corridors see concentrated highway-patrol enforcement attention, particularly at borders with Colorado, Montana, Utah, and Nebraska.

Frequently asked questions

Is recreational marijuana legal in Wyoming?

No. Adult-use cannabis remains illegal in Wyoming. Possession of 3 ounces or less of cannabis plant material or 0.3 ounce of hashish is a misdemeanor under Wyoming Statutes Title 35 Chapter 7 Article 10 with up to 12 months in jail and a $1,000 fine. Possession over those thresholds is a felony with up to 5 years in prison and a $10,000 fine. Wyoming has prosecuted edibles aggressively under THC-by-weight felony provisions — even small quantities of edibles can trigger felony exposure based on total product weight rather than just THC content. The Wyoming Controlled Substances Act treats cannabis as Schedule I. Wyoming has a citizen-initiative process, but high signature-gathering requirements distributed across a majority of counties have prevented cannabis ballot initiatives from qualifying. Last reviewed 2026-05-18. Informational only — not medical or legal advice.

Does Wyoming have a medical marijuana program?

No. Wyoming operates no comprehensive medical-cannabis program. There is no patient registry, no qualifying-condition list, no licensed-dispensary system, and no statutory protection from criminal-possession liability under Wyoming Statutes Title 35 Chapter 7 Article 10 for patients certified under another state's medical program. Multiple medical-cannabis bills have been introduced in recent Wyoming Legislature sessions without enactment, and the state's high citizen-initiative signature thresholds (15% of voters in the last general election, distributed across at least two-thirds of Wyoming's 23 counties) have prevented ballot-initiative efforts to authorize medical or adult-use cannabis from qualifying for the ballot. Wyoming has the narrowest cannabis framework in the country alongside Idaho and Kansas. Patient-advocacy organizations continue to lobby for at least a CBD oil program. Last reviewed 2026-05-18. Informational only — not medical or legal advice.

How can Wyoming residents access cannabis-derived products?

Wyoming permits possession of CBD products containing 0.3% delta-9 THC or less by dry weight, derived from compliant industrial hemp under the federal 2018 Farm Bill and the Wyoming Industrial Hemp Program regulated by the Wyoming Department of Agriculture. There is limited authorization for low-THC oil for narrow seizure conditions (with a physician's recommendation) under separate Wyoming statute, but operational access is constrained and there is no in-state dispensing infrastructure — patients must source product from out-of-state retailers. Intoxicating hemp-derived cannabinoids (delta-8 THC, delta-10 THC, THCA, HHC) remain in regulatory contention with Wyoming taking enforcement positions disputing their legality despite federal Farm Bill protection. Higher-THC cannabis products remain illegal under Wyoming Statutes Title 35 Chapter 7 Article 10. Buying any product above the 0.3% threshold exposes the buyer to cannabis-possession penalties. Last reviewed 2026-05-18. Informational only — not medical or legal advice.

Does Wyoming accept out-of-state medical marijuana cards?

No. Out-of-state medical cannabis cards confer no legal protection in Wyoming under any state statute. Patients arriving with cards from neighboring states — Colorado, Montana, Utah, Idaho, Nebraska, and South Dakota — remain subject to misdemeanor (3 ounces or less, up to 12 months jail) or felony (over 3 ounces, up to 5 years prison) penalties under Wyoming Statutes Title 35 Chapter 7 Article 10. Federal jurisdiction layers additional exposure on federal land, which includes a substantial fraction of Wyoming (Yellowstone National Park, Grand Teton National Park, BLM-administered land, and Forest Service land collectively covering nearly half the state). Wyoming Highway Patrol enforcement at state borders is active, particularly on I-80 from Colorado and Utah, I-25 from Colorado, and I-90 from Montana and South Dakota. Last reviewed 2026-05-18. Informational only — not medical or legal advice.

Sources

  1. Wyoming Statutes Title 35 Chapter 7 Article 10: Wyoming Controlled Substances Actaccessed May 16, 2026
  2. Wyoming Department of Healthaccessed May 16, 2026
  3. Wikipedia: Cannabis in Wyomingaccessed May 16, 2026