Cannabis law in Wyoming (2026)
Last reviewed: 9 October 2026
In short: Possession of up to three ounces of marijuana in Wyoming is a misdemeanour punishable by up to 12 months in jail and a $1,000 fine; larger amounts are felonies. Growing and supply are also offences. There is no medical cannabis programme.
| Rule | What applies |
|---|---|
| Possession for personal usePersonal use by an adult | Criminal offence [1] |
| Quantity limitsPersonal use by an adult | No quantity is lawful. Possession of three ounces or less of marihuana in plant form is a misdemeanour punishable by up to 12 months' imprisonment, a fine of up to $1,000, or both. A larger amount is a felony punishable by up to five years and a fine of up to $10,000. [1] |
| Growing at homePersonal use by an adult | Prohibited [1] |
| Sale to consumersPersonal use by an adult | Prohibited [1] |
| Medical cannabisPersonal use by an adult | Not available [1] |
| Driving after cannabis usePersonal use by an adult | No one may drive or have actual physical control of a vehicle while under the influence of a controlled substance to a degree that makes them incapable of driving safely. The fixed 0.08 limit is for alcohol only. [2] |
Notes
- A third or later offence under the misdemeanour tier is punishable by up to five years' imprisonment and a $5,000 fine.
- Practitioners may not dispense or prescribe marihuana or tetrahydrocannabinol, other than drugs approved by the US Food and Drug Administration such as dronabinol.
Sources
- Wyoming Legislature: Wyoming Statutes, Title 35 - Public Health and Safety (Controlled Substances Act, W.S. 35-7-1001 et seq.) (consulted 9 October 2026) · all sources
- Wyoming Legislature: Wyoming Statutes Title 31 Motor vehicles (W.S. 31-5-233) (consulted 10 October 2026) · all sources
National rules that also apply
These rules are set at national level in the United States and apply here too, alongside the rules above. All national rules for the United States
| Possession for personal use | Criminal offence (source: U.S. Government Publishing Office (govinfo)) |
|---|---|
| Growing at home | Prohibited (source: U.S. Government Publishing Office (govinfo)) |
| Sale to consumers | Prohibited (source: U.S. Government Publishing Office (govinfo)) |
Wyoming and neighbouring states
| State | Possession for personal use | Growing at home | Sale to consumers | Use or carrying in public places | Medical cannabis | Visitors |
|---|---|---|---|---|---|---|
| Wyoming | Criminal offence (misdemeanour) | Prohibited (misdemeanour) | Supply is an offence | — | No medical programme | — |
| Colorado | ⚠ Not yet verified | Up to 6 plants per person; 12 per home | Licensed retail stores | Banned in public; licensed venues excepted | Yes, for registered patients | ⚠ Not yet verified |
| Idaho | Illegal; penalties under the Controlled Substances Act | No (illegal to manufacture) | No legal sale | Illegal in public | No medical programme | — |
| Montana | Legal for adults 21+, within limits | Yes: 2 mature plants, 2 seedlings | Licensed dispensaries | Banned in public places | Medical programme (registered cardholders) | Visitors may buy; only residents grow |
| Nebraska | 1 oz or less: infraction, $300 fine (first time) | ⚠ Not yet verified | ⚠ Not yet verified | ⚠ Not yet verified | Legal for qualified patients; programme not yet running | ⚠ Not yet verified |
| South Dakota | Criminal offence (misdemeanour up to 2 oz) | ⚠ Not yet verified | Prohibited (medical dispensaries only) | — | Registered cardholders | Non-resident medical cardholders protected |
| Utah | Criminal offence (misdemeanour) | Prohibited | Prohibited (medical pharmacies only) | — | Patients with provider recommendation | — |
More rules in Wyoming
- Car speed limitsBuilt-up areas: 30 mph · Outside built-up areas (single carriageway): 70 mph state highways; 65 mph other paved
- Minimum age for a car driving licenceMinimum age for a car licence: 16 (after 6 months on intermediate permit) · Earliest age to drive a car supervised: 15 (instruction permit)
- E-bikes and speed pedelecsLegal class: Three classes
- Knives and pepper sprayFolding pocket knives: No knife rule; concealed deadly weapon offence · Locking or one-handed knives: No knife-specific rule
- Statutory minimum wageNational statutory minimum wage: Yes (state law, $5.15) · Current adult minimum wage (gross): $7.25 (federal; state basic rate $5.15)
- Using a mobile phone while drivingHolding a phone while driving banned: No (texting only) · Hands-free use: Allowed
- Seat belts and child seatsSeat belt compulsory in front seats: Yes · Seat belt compulsory in rear seats: Yes
- Tobacco and nicotine age limitsMinimum age to buy tobacco: 21 · Minimum age to buy e-cigarettes: 21
- Drinking age and alcohol salesMinimum age to buy beer and wine: 21 · Minimum age to buy spirits: 21
- Drink-driving limitsBlood alcohol limit for ordinary drivers: 0.08% · Lower limit for novice or young drivers: 0.02% (under 21)
Related pages
General information, not legal advice. Rules change: check the official source before you fly or ride.