DUI911

    State data last reviewed October 1, 2026 · all 50 states

    DUI BAC Limits and Lookback Periods by State

    QUICK ANSWER

    The standard limit is 0.08 in 49 states (different in Utah). 12 states are zero tolerance for drivers under 21, and 49 state guides list 0.04 for commercial drivers. A prior DUI counts for life in 7 states and for a limited number of years elsewhere; the table has every state.
    Keep reading for the full breakdown

    BAC limits and lookback periods, every state

    The high-BAC tier is the level where the state adds harsher penalties. “See state guide” means the guide has no single figure for that field; the state page explains why. Click a state for its laws page.

    DUI BAC limits (standard, high-BAC tier, commercial, under 21) and prior-offense lookback period by state
    StateStandardHigh-BAC tierCommercialUnder 21LookbackOfficial sources
    Alabama†0.080.15At 0.15 or more the minimum punishment is doubled, and an ignition interlock is required.0.040.02See state guideSource 1: Alabama Judicial System — §32-5A-191(a)(1) DUI (BAC 0.08 or more)Source 2: Alabama Judicial System — §32-5A-191(c)(2) DUI (Commercial Motor Vehicle Driver)Source 3: Alabama Judicial System — §32-5A-191(b) DUI (Under 21)Source 4: Alabama Judicial System — §32-5A-191(a)(2) DUI (Under the Influence of Alcohol)Source 5: ALEA — Ignition Interlock LawsSource 6: Alabama Judicial System — Form CR-54
    Alaska0.08See state guideAS 28.35.030 sets one per se limit (0.08) and has no separate higher-BAC penalty tier.0.040.00 (any detectable amount)15 yearsSource 1: Alaska Statutes — AS 28.35.030, DUISource 2: Alaska DMV — DUI Administrative RevocationSource 3: Alaska DMV — Underage Drinking, Zero ToleranceSource 4: Alaska Statutes — AS 28.15.181, Court suspensions and revocations
    Arizona0.080.150.15 or more is extreme DUI.0.040.00 (any detectable amount)7 yearsSource 1: A.R.S. §28-1381 — DUISource 2: ADOT MVD — Ignition Interlock FAQSource 3: ADOT MVD — Driving Under the Influence (DUI)Source 4: A.R.S. §28-1382 — Extreme DUISource 5: Governor’s Office of Highway Safety — Arizona DUI LawsSource 6: A.R.S. §28-1383 — Aggravated DUI
    Arkansas†0.08See state guideNo separate high-BAC tier was confirmed from an official Arkansas source.0.040.0210 yearsSource 1: Arkansas DFA — DUI, DWI, BUI, BWI OffensesSource 2: Arkansas DFA — CDL/CMV OffensesSource 3: Arkansas DFA — Underage OffensesSource 4: Arkansas Sentencing Commission — fiscal impact statement, SB81 (2015)
    California0.080.15Under Veh.0.040.0110 yearsSource 1: California DMV — Driving Under the InfluenceSource 2: California DMV — Fast Facts FFDL 35 (DUI, 21 and older)Source 3: Cal. Veh. Code §23152Source 4: California DMV — DUI First Offenders, Alcohol, Non-InjurySource 5: Cal. Veh. Code Div. 11.5, Ch. 2, Art. 5 — interlock and sentencing factorsSource 6: Cal. Veh. Code §23540Source 7: Cal. Veh. Code §23546Source 8: California DMV — Administrative Per Se Facts (2021)
    Colorado0.080.15A BAC of 0.15 or more makes you a Persistent Drunk Driver (PDD), even on a first offense.0.040.02LifetimeSource 1: Colorado Legislative Council — Colorado Drunk Driving Laws (law summary)Source 2: Colorado Revised Statutes 2024, Title 42Source 3: Colorado DMV — Reinstating After a DUI or Alcohol OffenseSource 4: Colorado DMV — Ignition Interlock Program
    Connecticut0.08See state guideThe §14-227a(g) penalties depend on prior convictions, not on BAC level.0.040.0210 yearsSource 1: Connecticut OLR — Connecticut DUI Law (2016-R-0147)Source 2: Connecticut Public Act 16-126 — Child Endangerment While Driving Under the InfluenceSource 3: C.G.S. §14-227a — Operation while under the influenceSource 4: Connecticut OLR — Public Act Summary: An Act Concerning Ignition Interlock Devices (2014)
    Delaware0.080.15At 0.15 to 0.19 a first-offense revocation rises from 12 to 18 months, and you cannot use the First Offender Election.0.040.0210 yearsSource 1: Delaware Code Title 21 — Motor Vehicles (full title PDF)Source 2: Delaware DMV — Driver Improvement FAQsSource 3: Delaware DMV — CDL ManualSource 4: Delaware DMV — Underage Drinking Law (§4177L)Source 5: Delaware General Assembly — Session Laws Chapter 235Source 6: 21 Del. C. §4177 — Driving under the influence; penaltiesSource 7: 21 Del. C. §4177B — First offenders election
    Florida0.080.15A BAC of 0.15 or more (or a passenger under 18 in the vehicle) raises the fine and jail ranges and requires an interlock.0.040.0210 yearsSource 1: FLHSMV — Florida DUI and Administrative Suspension LawsSource 2: §322.2615, Fla. Stat. (2025) — Florida SenateSource 3: §322.62, Fla. Stat. — Online SunshineSource 4: §322.2616, Fla. Stat. — Online SunshineSource 5: §316.193, Fla. Stat. — Online SunshineSource 6: §322.28, Fla. Stat. — Online Sunshine
    Georgia†0.08See state guideNo separate high-BAC sentencing tier was found in Georgia’s official DUI materials.0.040.0210 yearsSource 1: Georgia DPS — Policy 11.05 DUI EnforcementSource 2: Georgia DDS — Driver’s Manual, Chapter 1 ContinuedSource 3: Georgia DDS — Traffic Court Reference Manual 2021–2022Source 4: Georgia DPS — Habitual Violators, Felony Suspended License, Felony DUISource 5: Georgia DDS — DUI Chart
    Hawaii0.080.15A “highly intoxicated driver” (0.15 or more, defined in HRS §291E-1) gets an extra 48 consecutive hours of jail and six more months of revocation on a first offense.0.040.0210 yearsSource 1: HRS §291E-61.5 — Habitually OVUIISource 2: HRS §291E-61 — OVUIISource 3: HRS §286-240 — CDL disqualificationSource 4: Hawaii DOT — CDL Disqualifying Offenses and PeriodsSource 5: HRS §291E-64 — Operating a vehicle after consuming a measurable amount of alcohol; under 21Source 6: HRS §291E-1 — Definitions (highly intoxicated driver, measurable amount of alcohol)Source 7: Hawaii Judiciary — ADLRO Frequently Asked Questions
    Idaho0.080.20A BAC of 0.20 or more is excessive alcohol concentration.0.040.0210 yearsSource 1: Idaho Code §18-8004Source 2: Idaho Code §18-8004CSource 3: Idaho Code §18-8005
    Illinois†0.080.16A first DUI at 0.16 or more adds a mandatory minimum $500 fine and 100 hours of community service.0.040.00 (any detectable amount)LifetimeSource 1: 625 ILCS 5/11-501 — DUISource 2: Illinois Secretary of State — DUI Fact BookSource 3: 625 ILCS 5/6-514 — CDL disqualificationSource 4: Illinois Secretary of State — Zero Tolerance / Underage DrinkingSource 5: 625 ILCS 5/6-208 — Period of revocation
    Indiana†0.080.15A BAC of 0.15 or more makes a first OWI a Class A misdemeanor instead of Class C.0.040.027 yearsSource 1: Indiana BMV — Driver’s Manual, Chapter 5Source 2: Indiana Criminal Justice Institute — Impaired DrivingSource 3: Indiana Office of Court Services — CMV / Driver Enforcement DeskbookSource 4: Hamilton County Superior Court — Misdemeanor and Level 6 Felony AdvisementSource 5: Indiana Criminal Code 2015 (Grant County courts)
    Iowa†0.080.15Above 0.15, you are not eligible for a deferred judgment on a first OWI.0.040.0212 yearsSource 1: Iowa Code §321J.2Source 2: Iowa Legislative Services Agency — Legislative Guide to OWI LawSource 3: Iowa Code chapter 321J (2026)Source 4: Iowa DOT — Operating While Intoxicated (OWI)Source 5: Iowa Code §907.3 Deferred judgment
    Kansas†0.080.15A first test failure at 0.15 or more brings a 1-year suspension and then 1 year of interlock-only driving, instead of 30 days.0.040.02See state guideSource 1: K.S.A. 8-1567 Driving under the influenceSource 2: K.S.A. 8-2,144 Commercial drivers (Kansas Legislature)Source 3: K.S.A. 8-1567a Persons under 21Source 4: K.S.A. 8-1014 Suspension and restriction of driving privilegesSource 5: Kansas Department of Revenue — Alcohol Actions Chart
    Kentucky0.080.150.15 or more within two hours of driving is an aggravating circumstance that raises the mandatory minimum jail time.0.040.0210 yearsSource 1: Kentucky Revised Statutes 189A.010Source 2: Kentucky Office of Highway Safety — What is a DUI? Safety FactsSource 3: Kentucky Transportation Cabinet — DUI Penalties and ProgramsSource 4: Kentucky Transportation Cabinet — CDL Driver’s Manual (2025)Source 5: Kentucky Revised Statutes 189A.070
    Louisiana†0.080.15Two tiers.0.040.0210 yearsSource 1: La. R.S. 14:98 — Operating a vehicle while intoxicatedSource 2: La. R.S. 32:414.2 — Commercial driver disqualificationSource 3: Louisiana OMV — DisqualificationsSource 4: La. R.S. 32:667 — Seizure of license; administrative hearingSource 5: La. R.S. 14:98.1 — First offense penaltiesSource 6: Louisiana Legislature — Résumé digest, Act 409 (HB 484, 2023)Source 7: Louisiana Legislature — SB 220 (2017), present-law summary of child endangerment and 10-year rule
    Maine†0.080.15A test result of 0.15 or more is an aggravating factor.0.040.00 (any detectable amount)10 yearsSource 1: 29-A M.R.S. §2411 — Criminal OUISource 2: 29-A M.R.S. §2523 — Implied consent; commercial operatorsSource 3: 29-A M.R.S. §2472 — Juvenile provisional licenseSource 4: Maine BMV — Operating Under the Influence InformationSource 5: Maine Dept. of Public Safety — Implied ConsentSource 6: 29-A M.R.S. §2451 — Suspensions for OUI
    Maryland†0.080.150.15 or more doesn’t create a separate criminal charge.0.040.00 (any detectable amount)5 yearsSource 1: Md. Code, Transp. §21-902Source 2: Maryland MVA — Driving Under the Influence (DUI)Source 3: Md. Code, Transp. §16-812 — Commercial license disqualificationSource 4: Md. Code, Transp. §16-113 — Alcohol restrictionsSource 5: Maryland MVA — DR-15 Advice of RightsSource 6: Md. Code, Transp. §16-205.1Source 7: Maryland MVA — Ignition Interlock Program
    Massachusetts0.08See state guideThe §24 penalty tiers depend on prior offenses, not on BAC level.0.040.02LifetimeSource 1: Mass. RMV — Alcohol and drug suspensions for over 21 years of ageSource 2: M.G.L. c. 90 §24Source 3: Mass. RMV — Commercial Driver License ManualSource 4: 49 CFR 382.201 — Alcohol concentrationSource 5: Mass. RMV — Alcohol and drug suspensions for under 21 years of ageSource 6: Mass. RMV — Melanie’s Law / IID Program documentSource 7: Acts of 2005, Chapter 122 (Melanie’s Law)
    Michigan0.080.17High BAC: up to 180 days in jail, $200–$700 fine, 1-year suspension (restricted license after 45 days with an interlock), and required treatment.0.040.02LifetimeSource 1: Michigan State Police OHSP — Impaired Driving LawSource 2: Senate Fiscal Agency — SB 400 (2021) summary as enactedSource 3: MCL 257.625m — Commercial vehicle alcohol limitSource 4: Michigan Vehicle Code (excerpt) — Driving while intoxicated and reckless drivingSource 5: Michigan SOS — Substance Abuse and DrivingSource 6: Michigan SOS — High BAC OffensesSource 7: Michigan State Police OHSP — Costs and consequences of driving impairedSource 8: MCL 257.625 — Operating while intoxicated
    Minnesota†0.080.160.16 or more (twice the limit) is an aggravating factor.0.040.00 (any detectable amount)10 yearsSource 1: Minn. Stat. §169A.52 — Test refusal or failure; revocationSource 2: MN House Research — An Overview of Minnesota’s DWI LawsSource 3: Minnesota Statutes chapter 169A (2025)Source 4: Minn. Stat. §169A.33 — Underage drinking and drivingSource 5: Minn. Stat. §169A.26 — Third-degree DWISource 6: Minn. Stat. §169A.03 — Definitions
    Mississippi0.08See state guide§63-11-30 as amended by HB 292 (2024) sets no separate high-BAC penalty tier.0.040.025 yearsSource 1: Mississippi Legislature — HB 292 (2024), as sent to the GovernorSource 2: Mississippi Legislature — HB 1252 (2024), implied consent and BAC limitsSource 3: Mississippi DPS — Implied Consent Training ManualSource 4: Mississippi DPS — Frequently Asked Questions Related to Driving Under the Influence (2025)Source 5: Mississippi DPS Driver Service Bureau — DUI Department
    Missouri†0.080.15No separate criminal tier.0.040.02LifetimeSource 1: Missouri DOR — Driving While Intoxicated (DWI)Source 2: Missouri Driver Guide — Chapter 10Source 3: Missouri DOR — Commercial Motor Vehicle Operators and the LawSource 4: Missouri DOR — Reinstatement RequirementsSource 5: RSMo 577.001 — Definitions
    Montana0.080.16Aggravated DUI applies at 0.16 or more.0.040.0210 yearsSource 1: MCA 61-8-1002 — Driving under influenceSource 2: Montana DOJ — DUI Quick Reference Manual v1.1Source 3: MCA 61-8-1007 — Penalty for DUI, first through third offensesSource 4: MCA 61-8-1001 — Definitions (aggravated DUI)Source 5: MCA 61-8-1011 — Prior convictions; place of imprisonmentSource 6: Montana DOJ — Lookbacks and Legal Burdens Quick CardSource 7: MCA 61-8-1008 — Penalty for DUI, fourth and subsequent offenses
    Nebraska†0.080.15A BAC of 0.15 or more, or a refusal, raises the penalty class at every level.0.040.0215 yearsSource 1: Neb. Rev. Stat. §60-6,196Source 2: Neb. Rev. Stat. §60-4,163 — Commercial vehicle alcohol prohibitionSource 3: Neb. Rev. Stat. §60-6,211.01 — Under 21 prohibited actsSource 4: Neb. Rev. Stat. §60-6,211.02Source 5: Nebraska DMV — Administrative License Revocation (ALR)Source 6: Neb. Rev. Stat. §60-6,197.03Source 7: Neb. Rev. Stat. §60-6,197.02
    Nevada0.080.16At 0.16 or more on a first DUI, the court must order an alcohol or substance use disorder evaluation before sentencing (NRS 484C.350) and a treatment program (NRS 484C.400).0.040.027 yearsSource 1: NRS chapter 484C — Driving Under the InfluenceSource 2: Legislative Counsel Bureau — Driving Under the Influence in Nevada (2020)Source 3: NRS chapter 483 — Drivers’ LicensesSource 4: Nevada Legislature — SB 309 (2025), enrolledSource 5: Nevada Legislature — SB 309 (2025) overviewSource 6: Nevada DMV — DUI
    New Hampshire0.080.160.16 or more is aggravated DWI: a class A misdemeanor with a mandatory 17 consecutive days in jail, 12 of them suspended.0.040.0210 yearsSource 1: RSA 265-A:30 — Administrative License SuspensionSource 2: RSA 265-A:3 — Aggravated Driving While IntoxicatedSource 3: RSA 263:94 — CDL Violations and DisqualificationSource 4: RSA 265-A:18 — Penalties
    New Jersey0.080.10New Jersey has two first-offense tiers above 0.08: 0.10 to under 0.15 (higher fine, longer interlock) and 0.15 or more (license forfeiture for 3 months after an interlock is installed, then 12 to 15 more months of interlock).0.040.0110 yearsSource 1: NJ MVC — DWI penalties tableSource 2: P.L. 2019, c. 248 — DWI and refusal ignition interlock lawSource 3: NJ MVC — CDL violationsSource 4: P.L. 2023, c. 191 — Interlock, plea agreement and DWI changesSource 5: NJ Division of Highway Traffic Safety — DUI brochureSource 6: NJ Courts — Notice on the December 2019 DWI lawSource 7: NJ Supreme Court — 2014 opinion on the step-down provision
    New Mexico†0.080.160.16 or more is aggravated DWI, which adds mandatory jail time.0.040.02LifetimeSource 1: NM MVD — General DWI InformationSource 2: HB 106 (2025) — amendments in context (§66-8-102 current text)
    New York0.080.18Aggravated DWI: 0.18 or more.0.040.0210 yearsSource 1: NY DMV — Penalties for Alcohol or Drug-Related ViolationsSource 2: NY DMV — Driver’s Manual, Chapter 9: Alcohol and Other DrugsSource 3: N.Y. Vehicle and Traffic Law §1192
    North Carolina0.080.15A DWI conviction with 0.15 or more requires an ignition interlock before the license is restored.0.040.00 (any detectable amount)7 yearsSource 1: N.C. General Statutes Chapter 20 — section indexSource 2: NCDOT Governor’s Highway Safety Program — Booze It & Lose It brochureSource 3: N.C. Gen. Stat. §20-138.2 — Impaired driving in a commercial vehicleSource 4: N.C. Gen. Stat. §20-138.3 — Drivers under 21 after consuming alcoholSource 5: N.C. Gen. Stat. §20-17.8 — License restoration and ignition interlockSource 6: N.C. Gen. Stat. §20-179 — Sentencing for impaired drivingSource 7: N.C. Gen. Stat. §20-138.5 — Habitual impaired driving
    North Dakota0.080.16A first DUI at 0.16 or more is an aggravated first offense: at least $750 and 2 days in jail.0.040.027 yearsSource 1: N.D.C.C. ch. 39-08 — Regulations governing operatorsSource 2: NDDOT — Penalties for Driving Under the InfluenceSource 3: ND Highway Patrol — CDL Drivers and Alcohol Related OffensesSource 4: N.D.C.C. ch. 39-20 — Chemical test for intoxication; implied consentSource 5: ND Legislative Council — DUI laws under 2013 legislation (memo)
    Ohio0.080.17A “high test” of 0.17 (breath, blood, or blood serum equivalent) doubles the mandatory jail time and requires restricted plates or an interlock to drive.0.040.0210 yearsSource 1: Ohio Revised Code §4511.19 — OVISource 2: Ohio Dept. of Public Safety — Digest of Motor Vehicle Laws, Section 6Source 3: Ohio BMV — Juvenile SuspensionsSource 4: Ohio LSC — Bill analysis (March 15, 2022)Source 5: Ohio Revised Code §4511.191 — Implied consent
    Oklahoma0.080.15A BAC of 0.15 or more is aggravated DUI.0.040.00 (any detectable amount)10 yearsSource 1: 47 O.S. §11-902 — DUI (OSCN)Source 2: Oklahoma Highway Safety Office — Alcohol ImpairedSource 3: 47 O.S. §6-205.2 — Commercial driver disqualification (OSCN)Source 4: 47 O.S. §11-906.4 — Under-21 drivers (OSCN)Source 5: SB 54 bill summary (House staff)Source 6: CLEET — 2025 Legal Update
    Oregon0.080.15A BAC of 0.15 or more raises the minimum DUII fine to $2,000, even on a first conviction.0.040.00 (any detectable amount)10 yearsSource: Oregon Revised Statutes, Chapter 813
    Pennsylvania0.080.10High Rate tier starts at 0.10.0.040.0210 yearsSource 1: PennDOT DMV — DUI Legislation (penalty tables)Source 2: 75 Pa.C.S. §3802Source 3: 75 Pa.C.S. §3804Source 4: 75 Pa.C.S. Chapter 38Source 5: 75 Pa.C.S. §3806 — Prior offensesSource 6: Pennsylvania General Assembly — House Bill 1615 (2025–2026), Act 58 of 2025
    Rhode Island0.080.15Penalties step up at 0.10 and again at 0.15.0.040.0210 yearsSource 1: R.I. Gen. Laws §31-27-2 — Driving under influence of liquor or drugsSource 2: RI DMV — Blood Alcohol ConcentrationSource 3: RI DMV — Commercial Driver License ManualSource 4: RI DMV — PenaltiesSource 5: RI Attorney General — DUI lookback legislation passesSource 6: RI Public Laws 2024, Chapter 217 (H 7631) — DUI lookbackSource 7: RI Public Laws 2024, Chapter 218 (S 2937) — DUI lookback
    South Carolina0.080.10Penalties step up at 0.10 and again at 0.16.0.040.0210 yearsSource 1: SCDPS — Impaired Driving LawsSource 2: S.C. Code Title 56, Chapter 1 (§56-1-286, §56-1-2110)Source 3: SCDPS — SC Laws Relative to Impaired DrivingSource 4: SCDPS — Alcohol and Impaired DrivingSource 5: S.C. Code Title 56, Chapter 5 (§§56-5-2930 to 56-5-2990)
    South Dakota†0.08See state guideNo high-BAC penalty tier was found in the official sources reviewed for this guide.0.040.0210 yearsSource 1: SDCL §32-23-1 — Driving with alcohol in blood or under the influenceSource 2: SDCL §32-12A-36 — Commercial driver disqualificationSource 3: SDCL Chapter 32-23 — Driving Under the Influence
    Tennessee†0.080.20A first DUI at 0.20 or more raises the minimum jail term from 48 hours to 7 consecutive days.See state guide0.0210 yearsSource 1: Fiscal Review Committee — Memorandum FM2085 (DUI minimum sentences)Source 2: House Amendment to HB 180 (108th General Assembly) — implied consentSource 3: Senate Bill 186 (108th General Assembly) — DUI fines and revocationsSource 4: Tennessee Attorney General — Opinion 04-013 (child endangerment, underage DUI)Source 5: Tennessee Dept. of Safety — Restricted driver license guidance (2017)Source 6: Fiscal Review Committee — Memorandum FM1293 (DUI sentencing and 10-year rule)
    Texas†0.080.15A first DWI with 0.15 or more is a Class A misdemeanor instead of Class B.0.040.00 (any detectable amount)LifetimeSource 1: TxDOT — Impaired Driving and PenaltiesSource 2: Texas Penal Code Chapter 49Source 3: Texas DPS — CDL DisqualificationsSource 4: TxDOT — Underage Drinking and DrivingSource 5: HB 51 (79th Legislature, 2005) — enrolled text
    Utah0.050.16At 0.16 or more, the court must also order an ignition interlock, ankle monitor, or home confinement with electronic monitoring, plus a screening and assessment.0.040.00 (any detectable amount)10 yearsSource 1: Utah Highway Safety Office — Utah’s 0.05 BAC LawSource 2: Utah Code §41-6a-502 — Driving under the influence; penaltiesSource 3: Utah Code §53-3-414 — CDL disqualificationSource 4: Utah Driver License Division — DUI Suspension TimesSource 5: Utah Driver License Division — Alcohol-Restricted DriverSource 6: Utah Highway Safety Office — Utah’s DUI LawsSource 7: Utah Commission on Criminal and Juvenile Justice — 2025 DUI Statutory Overview
    Vermont0.080.16A second or later conviction at 0.16 or more bars you from driving at 0.02 or more for 3 years after that conviction.0.040.0220 yearsSource 1: Vermont Statutes — 23 V.S.A. § 1201Source 2: Vermont Statutes — Title 23, Chapter 13Source 3: Vermont Act 45 (2025) — Youth Substance Awareness Safety ProgramSource 4: Vermont Statutes — 23 V.S.A. § 1210
    Virginia0.080.15A first offense at 0.15 to 0.20 carries a mandatory 5 days in jail; above 0.20, a mandatory 10 days.0.040.0210 yearsSource 1: Va. Code Title 18.2, Chapter 7, Article 2 — Driving while intoxicatedSource 2: Virginia DMV — Virginia is TOUGH on drunk and drugged drivers (DMV 168)Source 3: Va. Code § 46.2-341.28 — Commercial vehicle DUI penaltiesSource 4: Va. Code § 46.2-341.24 — Driving a commercial motor vehicle while intoxicatedSource 5: Va. Code § 18.2-266.1 — Underage drivers with 0.02 or moreSource 6: Va. Code § 18.2-270 — DUI penalties
    Washington0.080.15A BAC of 0.15 or more (or a refusal) moves you into a higher sentencing tier: more mandatory jail, a higher minimum fine and a longer license suspension.0.040.027 yearsSource 1: RCW 46.61.502 — Driving under the influenceSource 2: Senate Bill Report — SSB 5067 (2026), as passed SenateSource 3: Washington Legislature — SSB 5067 bill status (2025–26)Source 4: Washington DOL — CDL disqualification for test refusalSource 5: RCW 46.20.308 — Implied consentSource 6: Washington DOL — DUI (Driving Under the Influence)Source 7: RCW 46.61.5055 — Penalty scheduleSource 8: Washington Courts — DUI Sentencing Grid (January 2026)
    West Virginia0.080.15Aggravated DUI at 0.15 or more carries more jail and a longer revocation.0.040.0210 yearsSource 1: W. Va. Code §17C-5-2Source 2: W. Va. Code §17E-1-14 (commercial driver alcohol prohibition)Source 3: W. Va. Code §17C-5A-3a
    Wisconsin0.080.15A first OWI with 0.15 or more requires an ignition interlock order.0.040.00 (any detectable amount)10 yearsSource 1: WisDOT — Drunk driving lawSource 2: WisDOT — OWI and related penalties chartSource 3: WisDOT — Commercial driver license alcohol and drug penaltiesSource 4: WisDOT — Underage alcohol offenses and penaltiesSource 5: Legislative Fiscal Bureau — Intoxicated Driver Laws (Jan. 2023)Source 6: Legislative Reference Bureau — Wisconsin’s OWI Laws
    Wyoming0.080.15A first DUI conviction at 0.15 or more requires an ignition interlock for 6 months.0.040.0210 yearsSource 1: Wyoming Statutes Title 31 — Motor VehiclesSource 2: WYDOT — Driving Privilege WithdrawalSource 3: Wyoming LSO — DUI Statutes topic summary (2020)Source 4: Wyoming LSO — Wyoming DUI Provisions (2016)

    From each state’s guide, which links the official sources. Educational information, not legal advice. † Still being verified against official sources; check the linked source before relying on it.

    Where the high-BAC tier starts

    States grouped by the BAC at which the guide says penalties step up.

    What the numbers mean

    The standard limit is a per se limit: at or above it you can be convicted on the test result alone. Below it you can still be charged if the officer can show your driving or driving ability was impaired. Commercial and under-21 limits are lower, and the lookback decides whether an earlier DUI makes the new charge a repeat offense.

    What each tier costs you is on the first-offense penalties table and in your state guide.

    Common questions

    Is the legal BAC limit 0.08 in every state?
    49 states use 0.08 for drivers 21 and over. Utah is 0.05. You can still be charged below the limit if the officer can show impairment.
    What is the BAC limit for commercial drivers?
    49 state guides list 0.04, the federal standard for drivers operating a commercial motor vehicle. Where the table shows "See state guide", read the state page.
    What is the BAC limit for drivers under 21?
    12 states set the limit at zero (any detectable alcohol); the rest set a low limit, most often 0.01 or 0.02. The table shows each state’s number.
    What is an aggravated or high-BAC DUI?
    Many states add harsher penalties above a second threshold, commonly 0.15 and in some states 0.16 to 0.20. The “High-BAC tier” column shows each state’s threshold and what changes where the guide says, such as a higher classification, more jail time or a required interlock.
    How long does a prior DUI count against me?
    That is the lookback period. Most state guides count a prior within a set number of years, and Colorado, Illinois, Massachusetts, Michigan, Missouri, New Mexico and Texas count it for life. A prior outside the window generally does not raise the penalty tier for a new charge, but it may still show on your record.

    Read your state’s guide

    Every number on this page links to the state guide that explains it, with the official source.

    All 50 state guides →

    Related guides

    Educational information, not legal advice. Each row comes from that state’s DUI911 guide and the official statute, licensing agency or court page it cites. Laws change and every case is different; confirm the deadline on the paperwork you were given and talk to a licensed attorney in your state.