Wyoming · DUI · Checked October 2026
Wyoming DUI Penalties: First, Second and Third Offense
Wyoming DUI Penalties: What Are the Rules?
Wyoming sets DUI penalties by offense, and they rise with each conviction.
- First offense jail
- Up to 6 months
- First offense fine
- Up to $750
- First offense license
- 90 days
- Felony
- A fourth or subsequent DUI conviction within 10 years is a felony: fine of up to $10,000, up to 7 years in prison, or both; plus lifetime ignition interlock (the offender may apply for removal 5 years after conviction and every 5 years after)
- Lookback period
- 10 years
Wyoming DUI Penalties by Offense
| Penalty | First offense | Second offense | Third offense |
|---|---|---|---|
| Charge | misdemeanor | misdemeanor | misdemeanor |
| Jail | up to 6 months | 7 days to 6 months (second conviction within 10 years); at least 7 days must be served before probation or release | 30 days to 6 months (third conviction within 10 years); the 30-day minimum is mandatory, but the court may suspend up to 15 days if the offender completes court-approved inpatient treatment |
| Fine | up to $750 | $200 to $750 | $750 to $3,000 |
| License suspension | 90 days | 1 year (prior conviction within 10 years) | 3-year revocation (two or more prior convictions within 10 years) |
| Ignition interlock | 6 months if the administrative action shows an alcohol concentration of 0.15 or more | 1 year | 2 years |
Other First Offense Penalties in Wyoming
- substance use disorder assessment at or before sentencing, at the offender's cost
- probation may run up to 3 years
Other Second Offense Penalties in Wyoming
- substance use disorder assessment before sentencing
- vehicle registration suspended if the prior conviction was within 2 years
Other Third Offense Penalties in Wyoming
- substance use disorder assessment
- court may order outpatient treatment during incarceration
When Penalties Are Higher in Wyoming
- alcohol concentration of 0.15 or more (first conviction): must drive only vehicles with an ignition interlock device for 6 months
- driver 18 or older with a child passenger under 16 in the vehicle: first conviction: up to 1 year in jail, a fine of up to $750, or both; if previously convicted under this provision: up to 5 years
- causing serious bodily injury to another person: fine of $2,000 to $5,000, up to 10 years, or both; up to 20 years if previously convicted under this provision; license revoked
When a DUI Is a Felony in Wyoming
a fourth or subsequent DUI conviction within 10 years is a felony: fine of up to $10,000, up to 7 years in prison, or both; plus lifetime ignition interlock (the offender may apply for removal 5 years after conviction and every 5 years after)Wyo. Stat. § 31-5-233(e), (f)(v)
How Far Back Prior Offenses Count in Wyoming
10 years. second, third and fourth offenses are counted when the prior convictions were within 10 years; for license actions the 10 years runs back from the date of the new offense or the date of the new convictionWyo. Stat. § 31-5-233(e); Wyo. Stat. § 31-7-127(a)(ii); Wyo. Stat. § 31-7-128(b)(ii)
Official source: how far back prior offenses count (Wyoming)
More on DUI Law in Wyoming
See the full overview of DUI laws in Wyoming and read about first-offense DUI penalties across the states.
This page summarizes Wyoming law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Wyoming can advise on your case.
Frequently Asked Questions
What Is the Penalty for a First DUI in Wyoming?
Jail: up to 6 months. Fine: up to $750. License suspension: 90 days.
What Is the Penalty for a Second DUI in Wyoming?
Jail: 7 days to 6 months (second conviction within 10 years); at least 7 days must be served before probation or release. Fine: $200 to $750. License suspension: 1 year (prior conviction within 10 years).
When Is a DUI a Felony in Wyoming?
a fourth or subsequent DUI conviction within 10 years is a felony: fine of up to $10,000, up to 7 years in prison, or both; plus lifetime ignition interlock (the offender may apply for removal 5 years after conviction and every 5 years after)