
Driving under the influence (DUI) is a serious offence in Wyoming, with severe consequences including jail time, fines, and license suspension. The legal alcohol limit for driving in Wyoming is a blood alcohol concentration (BAC) of 0.08%, measured by a breath, blood, or urine test. However, a person can still be arrested for DUI if they exhibit signs of intoxication, even with a BAC below the legal limit. For commercial drivers, the BAC limit is stricter at 0.04%, and drivers under 21 years of age have a limit of 0.02%. Refusing to submit to a chemical test is also an offence, and can result in license suspension or revocation. Wyoming has an implied consent law, allowing officers to request and obtain chemical tests, even by force if necessary. The penalties for a DUI conviction vary depending on the circumstances and the number of prior offences, with a 10-year 'washout period' for repeat offenders.
| Characteristics | Values |
|---|---|
| Blood Alcohol Concentration (BAC) Limit for DUI | 0.08% |
| BAC Limit for Commercial Drivers | 0.04% |
| BAC Limit for Drivers Under 21 | 0.02% |
| First DUI Conviction Penalty | Up to 6 months in jail and a $750 fine |
| Second DUI Conviction Penalty | Up to 30 days in jail and a $750 fine |
| Third DUI Conviction Penalty | Up to 6 months in jail |
| Fourth DUI Conviction Penalty | Up to 7 years in jail and a $10,000 fine |
| DUI with Serious Bodily Injury | Minimum $2,000 fine and up to 10 years in jail |
| Second DUI with Serious Bodily Injury | Up to 20 years in jail |
| License Suspension for DUI Conviction | 90 days |
| License Suspension for Refusing Chemical Test | 6 months |
| Ignition Interlock for First DUI with BAC 0.15 or more | 6 months |
| Ignition Interlock for Second DUI | 1 year |
| Ignition Interlock for Third DUI | 2 years |
| Ignition Interlock for Fourth DUI | Lifetime |
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What You'll Learn
- A BAC of 0.08% or higher is illegal for adult drivers
- Commercial drivers can't have a BAC of 0.04% or higher
- Drivers under 21 can't have a BAC of 0.02% or higher
- DUI conviction consequences: jail time, fines, license suspension
- DUI causing serious injury: minimum $2,000 fine and up to 10 years in prison

A BAC of 0.08% or higher is illegal for adult drivers
In the state of Wyoming, it is illegal for adult drivers to operate a motor vehicle with a blood alcohol concentration (BAC) of 0.08% or higher. This limit is enforced by law enforcement officers who may require drivers to submit to a breath, blood, or urine test to determine their BAC. Refusal to submit to a chemical test is also illegal in Wyoming, and officers are authorised to obtain a warrant to take a blood sample with or without the driver's consent.
The penalties for a DUI conviction in Wyoming are serious and can include jail time, fines, license suspension, and participation in substance abuse treatment or sobriety monitoring programs. For example, a first DUI conviction can result in up to six months in jail and a $750 fine, while a fourth DUI conviction within 10 years is a felony with up to seven years in prison and up to a $10,000 fine. Additionally, all convicted offenders must complete an alcohol and drug evaluation, and the judge may order treatment or sobriety monitoring based on the results.
The legal limit for BAC is lower for drivers under the age of 21 and commercial drivers. In Wyoming, it is illegal for drivers under 21 to operate a motor vehicle with a BAC of 0.02% or higher. For commercial drivers, the BAC limit is 0.04%. The consequences of a DUI conviction can be severe and impact the rest of a person's life, so it is important to seek legal counsel as soon as possible if accused of a DUI.
It is important to note that a person can still be arrested for a DUI in Wyoming even if their BAC is below the legal limit of 0.08%. If an officer observes signs of intoxication or impairment, a driver can be charged with a DUI even if their BAC is lower than the legal limit. This is because the law states that any person who has control of the vehicle can be charged with a DUI, regardless of whether they are actually driving or not.
Wyoming has a high rate of drinking and driving deaths, with the highest blood alcohol content levels for drivers involved in fatal crashes. As a result, the state takes DUI offences very seriously and enforces strict laws and penalties to deter people from driving under the influence.
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Commercial drivers can't have a BAC of 0.04% or higher
In the state of Wyoming, it is illegal to drive a motor vehicle while under the influence of alcohol or drugs with a blood alcohol concentration (BAC) level of 0.08% or higher. This limit is lower for commercial drivers, who cannot have a BAC of 0.04% or higher. This limit also applies to drivers of any age below 21 years old.
Wyoming's DUI laws are strict and the consequences of a conviction are serious. A first DUI conviction carries maximum penalties of six months in jail and a $750 fine. The penalties increase for repeat offences within 10 years, with mandatory jail time and higher fines. A fourth DUI in 10 years is a felony, carrying up to seven years in prison and a fine of up to $10,000.
Commercial drivers are subject to additional regulations and stricter penalties. A commercial driver stopped with a BAC of 0.04% or higher will be arrested for a DUI and have their commercial driver's license (CDL) revoked for one year for a first offence. A second offence will result in a lifetime CDL revocation. If the commercial driver is carrying hazardous materials at the time of the offence, the CDL will be revoked for three years for a first offence, and permanently for a second offence.
Wyoming has an implied consent law that permits officers to request a breath, blood, or urine sample to test for drugs or alcohol. While there are no penalties for refusing a test, officers can obtain a warrant to take a blood sample by force if necessary. A commercial driver who refuses to submit to a chemical test will receive a one-year suspension.
It is important to note that a person can still be arrested for a DUI in Wyoming even if their BAC is below the legal limit of 0.08%. If an officer observes signs of impairment, a person can be charged with a DUI if they are found to be mentally or physically unsafe to drive due to alcohol and/or drug consumption.
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Drivers under 21 can't have a BAC of 0.02% or higher
In the state of Wyoming, it is illegal for drivers under the age of 21 to operate a motor vehicle if their blood alcohol concentration (BAC) is 0.02% or higher. This is a significantly lower threshold than the 0.08% BAC limit that applies to adult drivers over the age of 21. The 0.02% limit for underage drivers reflects the state's strict stance on drinking and driving, aiming to deter minors from driving after consuming any amount of alcohol.
Wyoming's DUI laws are designed to prevent individuals from operating a motor vehicle while their judgement and reflexes are impaired by alcohol. While the legal BAC limit is 0.08% for adults, the state recognises that even a small amount of alcohol can significantly impact a minor's driving abilities. This lower threshold for underage drivers is intended to prioritise the safety of young people on the road and reduce the risk of alcohol-related accidents.
The penalties for underage drivers with a BAC of 0.02% or higher can be severe. For a first offence, the driver may face a fine of up to $750. A second offence within two years can result in up to 30 days in jail, and a third offence within the same period can lead to up to six months of incarceration. These consequences underscore the seriousness with which Wyoming treats underage drinking and driving.
It is important to note that the BAC limit for commercial drivers in Wyoming is even lower, set at 0.04%. This reflects the heightened responsibility of operating a commercial motor vehicle and the need to maintain the highest standards of safety on the road. Regardless of age or licence type, driving under the influence of alcohol is a dangerous decision that can lead to accidents, injuries, and legal repercussions.
Wyoming's implied consent law further reinforces its commitment to road safety. This law states that all drivers are deemed to have given consent to undergo a breath, blood, or urine test to determine their BAC. Refusing to submit to a chemical test is an offence in itself and can result in licence suspension or revocation. The state takes a proactive approach to deterring and penalising drunk driving, aiming to protect its residents and visitors alike.
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DUI conviction consequences: jail time, fines, license suspension
In Wyoming, a person is considered to be driving under the influence (DUI) if their blood alcohol concentration (BAC) is .08% or higher. A person can also be convicted of a DUI if they are found to be mentally or physically unfit to drive due to alcohol and/or drug impairment, even if their BAC is below .08%. The consequences of a DUI conviction in Wyoming include jail time, fines, and license suspension, with the specific penalties depending on the number of prior convictions and aggravating factors such as causing serious injury.
For a first DUI conviction in Wyoming, the maximum penalties include six months in jail and a $750 fine. If the offender's BAC is .15 or greater, they will be required to have an ignition interlock for six months. After serving the minimum jail sentence, the offender can be placed on probation for up to three years, which may include 24/7 sobriety monitoring, court supervision, and treatment. All convicted offenders must complete a substance abuse assessment, and based on the results, the court may order additional treatment or sobriety monitoring.
The penalties for a second DUI conviction within ten years include a jail sentence of up to 30 days, a fine of up to $750, and a one-year ignition interlock device (IID) restriction. If the second DUI occurs within two years of the first, the offender's vehicle registration will also be suspended until their driving license is reinstated.
A third DUI conviction within two years in Wyoming carries increased penalties, including up to six months in jail, a fine of up to $750, a two-year IID restriction, and a six-month license suspension. Inpatient treatment is often mandated for third offenders, and completion of treatment can reduce the required jail time.
A fourth DUI conviction within ten years is considered a felony in Wyoming, with penalties of up to seven years in prison and a fine of up to $10,000. Additionally, the offender will be required to have an ignition interlock for life, with the ability to apply to the Court for removal after five years.
It is important to note that the penalties for a DUI conviction in Wyoming can be further enhanced if the offense results in serious bodily injury to another person. In such cases, the minimum penalties include a $2,000 fine and up to ten years in jail, with the potential for up to 20 years if it is a subsequent offense.
In addition to the criminal penalties, a DUI conviction in Wyoming will result in license suspension. The length of the suspension varies depending on the number of prior convictions, ranging from 90 days for a first offense to one year for a second offense within two years. The suspension for a DUI arrest and conviction will typically run concurrently, meaning the driver will not have to complete both full suspension periods.
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DUI causing serious injury: minimum $2,000 fine and up to 10 years in prison
In the state of Wyoming, it is illegal to drive a motor vehicle while under the influence of alcohol or drugs with a blood alcohol concentration (BAC) level of 0.08% or greater. This limit is lowered to 0.04% for commercial drivers and 0.02% for drivers under 21 years of age.
If you are convicted of a DUI in Wyoming, you may face penalties such as license suspension, fines, and even jail time. The specific penalties depend on various factors, including the number of prior offenses and the presence of aggravating factors, such as causing serious injury.
When a DUI results in serious bodily injury, the consequences become significantly more severe. In Wyoming, causing serious injury while driving under the influence can lead to a minimum fine of $2,000 and a prison sentence of up to 10 years. The definition of "serious bodily injury" includes injuries that cause unconsciousness, concussions, significant fractures, second or third-degree burns, or protracted impairment of bodily functions or mental faculties.
The penalties for a DUI causing serious injury can escalate further if the offender has previous DUI convictions. For example, if an individual is convicted of a second DUI offense that resulted in serious injury, the potential prison sentence increases to up to 20 years.
It is important to note that the consequences of a DUI conviction can be life-altering. In addition to the legal penalties, a DUI conviction can impact an individual's driving privileges, insurance requirements, and employment opportunities. Seeking legal counsel as soon as possible after a DUI arrest is crucial to navigating the legal system and understanding the potential consequences.
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Frequently asked questions
In the state of Wyoming, it is an offense for adult drivers to operate a motor vehicle with a blood alcohol concentration (BAC) of 0.08% or higher.
In Wyoming, it is an offense for commercial drivers to operate a commercial motor vehicle with a BAC of 0.04% or higher.
In Wyoming, it is an offense for drivers under 21 years of age to have a BAC of 0.02% or higher.





















