Wyoming DUI Laws & Drunk Driving Penalties
Overview of the penalties upon conviction of DUI in Wyoming
Wyoming DUI Laws, BAC limits, fines, jail times, IID requirements, suspension/revocation periods and SR22 insurance requirements for first time and repeat offenders with multiple DUI's.
If you've been charged with DUI in Wyoming, the law allows only 20 days for a Wyoming DUI Lawyer to make a request with the Wyoming Department of Transport for a hearing to help save your drivers license.
What are the penalties for DUI in Wyoming?
The penalties for driving under the influence in Wyoming will depend upon the exact circumstances of each particular case and the number of previous offenses (if any) a person has.
WY DUI Penalties
Wyoming is a state with a 10 year 'washout period' also known as a 'look back period'
1st DUI Offense / Conviction - Misdemeanor
The penalty upon conviction of a first DUI offense in Wyoming:
- Fine: up to $750 fine
- Jail: up to 6 months in jail
- License Suspension: 90 days drivers license suspension
- Ignition Interlock: ignition interlock restriction required IF BAC 0.15 or more for 6 months from date of conviction
- substance abuse assessment & treatment as required
- WY SR22 Insurance (proof of financial responsibility) Requirement
2nd DUI Offense / Conviction - Misdemeanor
The penalty upon conviction of a second DUI offense in Wyoming:
- Fine: $200 to $750 fine
- Jail: 7 days to 6 months in jail
- License Suspension: 1 year drivers license suspension
- Ignition Interlock: 1 year ignition interlock restriction from date of conviction
- substance abuse assessment & treatment as required
- WY SR22 Insurance (proof of financial responsibility) Requirement
3rd DUI Offense / Conviction - Misdemeanor
The penalty upon conviction of a third DUI offense in Wyoming:
- Fine: $750 to $3,000 fine
- Jail: 30 days to 6 months in jail
- License Suspension: 3 years drivers license suspension
- substance abuse assessment & treatment as required
- Ignition Interlock: 2 years ignition interlock restriction from date of conviction
- possible inpatient treatment program
- WY SR22 Insurance (proof of financial responsibility) Requirement
4th (& subsequent) DUI Offense / Conviction - Felony
The penalty upon conviction of a fourth or subsequent DUI offense in Wyoming:
- Fine: up to $10,000 fine
- Jail: up to 2 years in jail (this will increase from up to 2 years to up to 7 years as of July 1st 2012)
- License Suspension: indefinite drivers license suspension
- Ignition Interlock: lifetime ignition interlock restriction from date of conviction (can appeal for removal after 5 years)
- substance abuse assessment & treatment as required
- WY SR22 Insurance (proof of financial responsibility) Requirement
Implied Consent (Chemical Testing) Laws

It is an offense to refuse to submit to a chemical test in Wyoming and implied consent laws are enforced.
NOTE: No longer has right to refuse chemical test (effective from July 1st 2011)
People are now 'required' rather than 'requested' to take a chemical test. Police officers are now able to obtain a warrant to take a blood sample with or without a persons consent.
In Wyoming, if the accused refuses to take a chemical test of their blood, breath or urine, their drivers license will be suspended/revoked.
FIRST CHEMICAL TEST REFUSAL
- License Suspension: 6 months drivers license suspension
- Ignition Interlock: 6 months ignition interlock restriction from date of offense
- WY SR22 Insurance (proof of financial responsibility) Requirement
SECOND (and subsequent) Chemical test REFUSAL
- License Suspension: minimum 18 months drivers license suspension
- Ignition Interlock: from 1 year to lifetime ignition interlock restriction from date of offense
- WY SR22 Insurance (proof of financial responsibility) Requirement
What is the legal alcohol limit in Wyoming
The maximum legal BAC (blood alcohol content) limits in Wyoming for driving are as follows:
ADULT DRIVERS - BAC LIMIT = 0.08%
In the State of Wyoming it is an offense for adult drivers to drive any regular motor vehicle with 0.08% or more, by weight, of alcohol in his/her blood.
DRIVERS UNDER 21 - BAC LIMIT = 0.02%
In the State of Wyoming it is an offense for drivers under the age of 21 (minors) to drive any motor vehicle with 0.02% or more, by weight, of alcohol in his/her blood.
COMMERCIAL DRIVERS - BAC LIMIT = 0.04%
In the State of Wyoming it is an offense for drivers who drive commercial vehicles to drive any commercial motor vehicle with 0.04% or more, by weight, of alcohol in his/her blood.
It is an offense to refuse to submit to a chemical test in Wyoming and implied consent laws are enforced.
Buffalo, Casper, Cheyenne, Cody, Douglas, Evanston, Gillette, Green River, Jackson, Lander, Laramie, Newcastle, Pinedale, Powell, Rawlins, Riverton, Rock Springs, Sheridan, Thermopolis, Torrington, Wheatland, Worland.
Albany, Big Horn, Campbell, Carbon, Converse, Crook, Fremont, Goshen, Hot Springs, Johnson, Laramie, Lincoln, Natrona, Niobrara, Park, Platte, Sheridan, Sublette, Sweetwater, Teton, Uinta, Washakie, Weston.