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Wyoming · DUI

Wyoming DUI laws and penalties

Wyoming's legal BAC limit is 0.08%. For a first offense, Wyoming's statute provides jail of up to 6 months, a fine of up to $750, and a license suspension of 90 days. The license hearing, the ignition interlock rule and the statute behind every figure are below.

Figures read from official pages on .

Wyoming DUI laws at a glance

Legal BAC limit
0.08%
Standard US limit
Enhanced penalty BAC
0.15%
Where the penalties step up
Zero tolerance (under 21)
0.02%
Limit for drivers under 21
Lookback period
10 years
Prior DUI offenses that count

License hearing: ask within 20 days

Within 20 days of the date of the notice, ask the department for a hearing; otherwise the right is waived and the 90-day suspension begins 30 days after the notice date. Count the days with the license-hearing window calculator.
Ignition interlock required in some cases

Higher BAC level. At 0.15 or more a first offender must use only interlock-equipped vehicles for six months (or a 24/7 sobriety program).

Ignition interlock. Required for a first conviction only where the Department finds 0.15 or more (six months).

A first Wyoming DUI is a misdemeanor with no minimum jail or fine (up to 6 months and $750). A second conviction within 10 years carries 7 days to 6 months. The interlock requirement for a first offender depends on the Department's administrative finding of 0.15 or more.

01Penalties

Wyoming DUI penalties

Statutory ranges for standard DUI convictions (no accident, no minor in vehicle).
Wyoming statutory DUI penalties, first and second offense
Penalty1st offense2nd offense
Jail (minimum)None7 days
Jail (maximum)6 months6 months
Fine (minimum)No minimum$200
Fine (maximum)$750$750
License suspension90 days1 year

Statutory ranges only. Actual outcomes vary by county, judge, and attorney. Does not include court fees, surcharges, or program costs.

02Compare

How Wyoming compares

Of the 49 states with a confirmed BAC limit, 48 (Wyoming among them) use 0.08%; Utah has 0.05%.

On this site's reading of the statutes, of the 49 states with a confirmed rule, 21 require an ignition interlock after every first conviction, 18 in some cases and 8 leave it to the judge; 2 do not require one. Wyoming requires one in some cases.

The 40 states with a fixed deadline give from 6 to 90 days to ask for a license hearing (the middle one is 10); Wyoming gives 20.

Wyoming and the states that border it, first-offense figures side by side
StateBAC limitHearing requestInterlock, first offenseJail, first offenseFine, first offenseLicense, first offense
Colorado0.08%7 daysIn some cases5 days to 1 year$600 to $1,0009 months
Idaho0.08%7 daysRequiredUp to 6 monthsUp to $1,00030 days absolute suspension, then 60 to 150 more days
Montana0.08%30 daysAt the judge's discretionUp to 6 months$600 to $1,0006 months
Nebraska0.08%10 daysRequired7 days to 60 days$5006 months
South Dakota0.08%No fixed deadlineNot requiredUp to 1 yearUp to $2,00030 days minimum
Utah0.05%10 daysRequired2 days to 6 months$700 to $1,000120 days
Wyoming (this page)0.08%20 daysIn some casesUp to 6 monthsUp to $75090 days

Every figure is the statute's own, read from the same kind of page. See DUI laws and penalties for all 50 states.

03The process

How a DUI case moves through the system in Wyoming

The typical sequence, in general terms. Timing and details differ by county and by case.
  1. Arrest and booking

    Police arrest a driver on suspicion of DUI and take the person to the local jail, where booking records the arrest, the charge and the times.

  2. Release

    A person is released after posting bail, on their own recognizance, or after a hold. Amounts and timing differ by county.

  3. License action

    Within 20 days of the date of the notice, ask the department for a hearing; otherwise the right is waived and the 90-day suspension begins 30 days after the notice date.

  4. Arraignment

    The first court appearance, where the charge is read and a plea (guilty, not guilty or no contest) is entered.

  5. Pretrial resolution

    A case can end in a plea to a reduced charge, in a diversion or deferred program where the state has one, in a trial, or in a dismissal, depending on the state and the facts.

  6. Sentencing or trial

    For a first offense, Wyoming's statute provides jail of up to 6 months, a fine of up to $750, and a license suspension of 90 days. See the penalties table above.

04Sources

Where Wyoming's figures come from

Each figure was read on the official page linked here on Oct 26, 2026, and the quoted words were checked against the page the day it was read. The exact words are below so you can check them. Found a mistake? Write to hello@duiarrested.com with the state and the figure.
  • Wyo. Stat. § 31-5-233(b) (wyoleg.gov)Main statute · BAC limit, age 21 and over · Higher BAC level · BAC limit under 21 · Lookback period · License hearing request · Ignition interlock, first offense · First offense: jail, minimum · First offense: jail, maximum · First offense: fine, minimum · First offense: fine, maximum · First offense: license · Second offense: jail, minimum · Second offense: jail, maximum · Second offense: fine, minimum · Second offense: fine, maximum · Second offense: license
Show the exact words behind each figure
Main statute

Wyo. Stat. § 31-5-233

Wyo. Stat. § 31-5-233(b)

No person shall drive or have actual physical control of any vehicle within this state if the person:
BAC limit, age 21 and over

0.08%

Wyo. Stat. § 31-5-233(b)(i)

hundredths of one percent (0.08%) or more;
Higher BAC level

0.15%

Wyo. Stat. § 31-5-233(f)(ii)

where the department's administrative action indicates the person had an alcohol concentration of fifteen one-hundredths of one percent (0.15%) or more, operate only vehicles equipped with an ignition interlock device
BAC limit under 21

0.02%

Wyo. Stat. § 31-5-234(b)

alcohol concentration of two one-hundredths of one percent (0.02%) or more as measured within two (2) hours after the time of driving or being in actual physical control following a lawful arrest resulting from a valid traffic stop
Lookback period

10 years

Wyo. Stat. § 31-5-233(e)

On a second offense resulting in a conviction within ten (10) years after a conviction for a violation of this section or other law prohibiting driving while under the influence
License hearing request

20 days

Wyo. Stat. § 31-6-102(f)

the person has twenty (20) days from the date of the notice within which to request a hearing from the department
Ignition interlock, first offense

Required in some cases

Wyo. Stat. § 31-5-233(f)(ii), (n)

where the department's administrative action indicates the person had an alcohol concentration of fifteen one-hundredths of one percent (0.15%) or more, operate only vehicles equipped with an ignition interlock device
First offense: jail, minimum

None

Wyo. Stat. § 31-5-233(e)

a misdemeanor punishable by imprisonment for not more than six (6) months, a fine of not more than seven hundred fifty dollars ($750.00), or both
First offense: jail, maximum

6 months

Wyo. Stat. § 31-5-233(e)

Same passage as above.

First offense: fine, minimum

No minimum

Wyo. Stat. § 31-5-233(e)

Same passage as above.

First offense: fine, maximum

$750

Wyo. Stat. § 31-5-233(e)

Same passage as above.

First offense: license

90 days

Wyo. Stat. § 31-7-128(b)(i)

Ninety (90) days for the first conviction
Second offense: jail, minimum

7 days

Wyo. Stat. § 31-5-233(e)

he shall be punished by imprisonment for not less than seven (7) days nor more than six (6) months
Second offense: jail, maximum

6 months

Wyo. Stat. § 31-5-233(e)

Same passage as above.

Second offense: fine, minimum

$200

Wyo. Stat. § 31-5-233(e)

In addition, the person may be fined not less than two hundred dollars ($200.00) nor more than seven hundred fifty dollars ($750.00).
Second offense: fine, maximum

$750

Wyo. Stat. § 31-5-233(e)

Same passage as above.

Second offense: license

1 year

Wyo. Stat. § 31-7-128(b)(ii)

One (1) year, if the person has been previously convicted once under W.S. 31-5-233 or other law prohibiting driving while under the influence within the ten (10) year period preceding

05Related

Related pages

Note: This page summarizes state statutes and published figures. It is general information, not legal advice, and it may be out of date or incomplete. Penalty ranges are statutory ranges; actual outcomes depend on the case. See the Disclaimer.