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DUI Laws in New Mexico (DWI/DUI (both used))

New Mexico uses the term "DWI/DUI (both used)" for impaired driving offenses. The standard BAC limit is 0.08%. The lookback period is Lifetime. 4th DWI offense (lifetime lookback — all prior DWI convictions count regardless of when they occurred). Below are the full details of New Mexico's DUI laws and penalties.

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Overview

New Mexico uses both DWI (Driving While Intoxicated) and DUI (Driving Under the Influence) terminology, with DWI being the more common legal term in statutes. The state has historically had some of the highest DWI fatality rates in the nation, leading to aggressive enforcement and penalty reforms. New Mexico uses a lifetime lookback for felony DWI — a fourth DWI offense is always a felony regardless of time elapsed. The state has a robust ignition interlock program and was one of the first states to mandate IID for all first-time DWI offenders. New Mexico also imposes vehicle seizure and forfeiture for repeat offenders.

Official term: DWI/DUI (both used)

BAC Limits

Driver TypeBAC Limit
Standard (21+)0.08%
Commercial (CDL)0.04%
Under 210.02%
Enhanced Penalty0.16% — aggravated DWI (also triggered by refusing a test, causing bodily injury, or driving while revoked for DWI — 66-8-102D), which adds mandatory consecutive jail at every offense level

Penalties by Offense

OffenseClassificationJail TimeFinesLicense SuspensionIID
1st OffenseMisdemeanorUp to 90 days; no mandatory minimum for a standard first offense (66-8-102F). Aggravated DWI — BAC ≥ 0.16%, refusing a chemical test, causing bodily injury, or driving while revoked for a prior DWI (66-8-102D) — adds a mandatory consecutive 48-hour jail term.Up to $500 for standard. Aggravated: up to $1,000. Plus screening fees, IID costs, and other assessments.Administrative revocation by MVD: 6 months for a first failed test (age 21+, 66-8-111C) or 1 year for a first refusal (66-8-111B). A separate 1-year revocation follows a criminal conviction (66-5-29A(2)). An ignition interlock license (66-5-503) allows driving during the revocation period.Mandatory for all first offenders — IID license issued for 1 year, allowing driving only with IID-equipped vehicle
2nd OffenseMisdemeanorMandatory minimum 96 consecutive hours (4 days) up to 364 days (66-8-102F(1)). Aggravated DWI adds a separate consecutive 96-hour jail term on top of the standard minimum — a total mandatory minimum of 192 hours (8 days); neither term can be suspended or deferred.Up to $1,000 plus assessments and screening fees2-year revocation upon conviction (66-5-29A(3)); the administrative revocation for a second failed test or refusal is 1 year. An ignition interlock license (66-5-503) allows driving during the revocation.Mandatory for 2 years; IID license available to allow driving
3rd OffenseMisdemeanor (still misdemeanor in NM; 4th is felony)Mandatory minimum 30 consecutive days up to 364 days (66-8-102F(2)). Aggravated DWI adds a separate consecutive 60-day jail term on top of the standard minimum — a total mandatory minimum of 90 days; neither term can be suspended or deferred.Up to $1,000 plus assessments3-year revocation; IID license may be available after a waiting periodMandatory for 3 years
Felony4th-degree Felony4th offense (4th-degree felony): 18 months, of which 6 months cannot be suspended, deferred, or taken under advisement (66-8-102G). Mandatory minimums escalate with offense number — 1 year for a 5th offense, 18 months for a 6th, 2 years for a 7th; an 8th or subsequent offense is a 2nd-degree felony with a 10-year mandatory minimum (up to 12 years).Up to $5,000 plus assessmentsRevocation forever, with an ignition interlock required for life (66-8-102N(4)). Five years from the date of conviction, and every 5 years thereafter, the offender may apply to the district court for removal of the interlock requirement and restoration of the license (66-8-102P); the court may grant this only for good cause shown.Ignition interlock required for life (66-8-102N(4)), on all vehicles driven, regardless of any later restoration of driving privileges

Felony threshold: 4th DWI offense (lifetime lookback — all prior DWI convictions count regardless of when they occurred). Lookback period: Lifetime — all prior DWI convictions count toward enhancement. New Mexico eliminated its lookback period; a 4th DWI is always a felony regardless of when prior offenses occurred..

Additional Penalty Details

OffenseCommunity ServiceProbationDUI School
1st OffenseUp to 48 hours of community service at court's discretion; mandatory 48 hours for aggravated first offenseUp to 1 year; mandatory DWI screening and compliance with recommended treatmentMandatory DWI school (typically 18–36 hours) and a clinical screening/assessment; completion of recommended treatment program
2nd Offense48 hours mandatory community serviceUp to 2 years; mandatory DWI treatment program and compliance monitoringMandatory DWI education and treatment program (intensive outpatient or outpatient depending on clinical assessment)
3rd Offense96 hours mandatory community serviceUp to 3 years; intensive supervision and mandatory treatmentMandatory intensive treatment program; residential treatment may be ordered
FelonyAt court's discretion as parole conditionUp to 5 years post-incarceration supervised probation; mandatory treatment and monitoringMandatory intensive inpatient treatment program

Implied Consent Law

Under New Mexico's Implied Consent Act (NMSA 1978 § 66-8-107), any person who operates a motor vehicle in the state is deemed to have consented to chemical testing of breath or blood when a law enforcement officer has reasonable grounds to believe the person has been driving while intoxicated.

Refusal penalties: First refusal: 1-year administrative revocation (66-8-111B). Subsequent refusals escalate: 2 years for a second, 3 years for a third, and lifetime for four or more refusals. An ignition interlock license (66-5-503) is available to drive during a refusal revocation — the MVD lists interlock license eligibility alongside the refusal revocation. Refusing the test also makes the offense aggravated DWI (66-8-102D), adding mandatory jail. Refusal can be introduced as evidence in court. The refusal revocation is separate from any DWI conviction revocation.

Aggravating Factors

FactorImpact
BAC of 0.16% or higher (Aggravated DWI)Adds a separate mandatory consecutive jail term on top of the base minimum — 48 hours (first offense), 96 hours (second, for a 192-hour total minimum), or 60 days (third, for a 90-day total minimum); these added terms cannot be suspended, deferred, or taken under advisement (66-8-102D, F)
Refusal to submit to chemical testingEscalating administrative revocation — 1 year for a first refusal, then 2 years, 3 years, and lifetime for four or more (66-8-111B); an IID license remains available during the revocation (66-5-503); refusal also constitutes aggravated DWI with added mandatory jail (66-8-102D) and is admitted as evidence at trial
Causing great bodily harm or deathElevated to Great Bodily Harm by Vehicle (3rd-degree felony, up to 6 years) or Homicide by Vehicle (2nd-degree felony, up to 15 years)
Minor passenger under age 18Additional child abuse or endangerment charges possible; enhanced sentencing consideration
Driving on a revoked license due to prior DWISeparate misdemeanor charge (Driving While License Revoked for DWI) with additional mandatory jail time; vehicle subject to seizure
Prior felony DWI convictionAny subsequent DWI is automatically a felony; mandatory prison term (6-month minimum for a 4th offense, escalating to a 10-year minimum by the 8th); vehicle forfeiture

DUI with Injury

Classification: 3rd-degree Felony — Great Bodily Harm by Vehicle (NMSA § 66-8-101); 2nd-degree Felony — Homicide by Vehicle (NMSA § 66-8-101)

Great Bodily Harm by Vehicle while DWI: 3rd-degree felony carrying up to 6 years imprisonment and up to $5,000 in fines. Homicide by Vehicle while DWI: 2nd-degree felony carrying up to 15 years imprisonment and up to $12,500 in fines. Mandatory license revocation. Restitution to victims required. Vehicle forfeiture is mandatory for DWI-related vehicular homicide.

Underage DUI

Zero tolerance: Yes
BAC limit: 0.02%

Drivers under 21 with BAC of 0.02% or higher face a 1-year license revocation for a first offense and a 2-year revocation for a second offense. Mandatory alcohol screening and education program. Community service of 24 hours for first offense. If BAC is 0.08% or higher, the underage driver faces the same adult DWI criminal penalties in addition to underage sanctions. Any underage DWI conviction delays full license eligibility.

Diversion Programs

Program: DWI/Drug Court / Conditional Discharge

New Mexico operates DWI/Drug Courts in multiple judicial districts (including Bernalillo County Metro Court, which has one of the nation's oldest DWI Courts). These programs provide intensive supervision, mandatory treatment, random testing, frequent court appearances, and graduated sanctions over 12 to 24 months. Successful completion may result in reduced sentences. New Mexico does not offer pretrial diversion for DWI specifically, but the conditional discharge statute allows first-time offenders to plead guilty and have the conviction deferred pending completion of conditions.

Eligibility: DWI Courts generally accept repeat DWI offenders with demonstrated substance abuse issues. Eligibility varies by judicial district. Conditional discharge is available only for first-time DWI offenders with no aggravating factors. Those charged with aggravated DWI (BAC ≥ 0.16%) may be eligible depending on the jurisdiction.

How Long a DUI Stays on Your Record

A DWI conviction remains on your New Mexico criminal record permanently. New Mexico does not allow expungement of DWI convictions. However, the state enacted a record sealing law in 2024 that may apply to certain older misdemeanor DWI convictions after a waiting period. On your driving record (MVD), DWI convictions remain visible for at least 10 years and are accessible to law enforcement indefinitely. Because New Mexico uses a lifetime lookback, old DWI convictions always affect future sentencing.

Key Statutes

NMSA 1978 § 66-8-102
Driving while under the influence of intoxicating liquor or drugs — main DWI offense statute
NMSA 1978 § 66-8-102.1
Guilty pleas to DWI charges — plea and deferral conditions
NMSA 1978 § 66-5-29
Revocation of license upon DWI conviction — 1-year, 2-year, and 3-year tiers; forever for a fourth or subsequent conviction
NMSA 1978 § 66-8-107
Implied Consent Act — chemical testing requirements
NMSA 1978 § 66-8-101
Homicide by vehicle and great bodily harm by vehicle
NMSA 1978 § 66-5-503
Ignition Interlock Licensing Act — ignition interlock license eligibility during a revocation

Frequently Asked Questions

How long does a DWI stay on your record in New Mexico?
A DWI conviction remains on your New Mexico criminal record permanently. The state does not allow traditional expungement of DWI convictions. New Mexico's record sealing law (effective 2024) may allow sealing of some older misdemeanor DWI convictions after a waiting period, but this is limited. For the purposes of penalty enhancement, New Mexico uses a lifetime lookback — meaning any prior DWI conviction, no matter how old, will count toward escalating future charges.
Is a first DWI a felony in New Mexico?
No, a first DWI in New Mexico is a misdemeanor carrying up to 90 days in jail and up to $500 in fines for a standard offense. An aggravated first DWI (BAC ≥ 0.16%) is still a misdemeanor but carries a mandatory 48-hour jail minimum and up to $1,000 in fines. A DWI becomes a 4th-degree felony in New Mexico on the 4th offense.
What happens if you refuse a breathalyzer in New Mexico?
A first refusal results in a 1-year administrative license revocation (66-8-111B), and subsequent refusals escalate to 2 years, 3 years, and lifetime. An ignition interlock license (66-5-503) is available to drive during the revocation. Refusing also makes the charge aggravated DWI (66-8-102D), which adds mandatory jail on top of the standard penalty, and the refusal can be admitted as evidence against you in court. Law enforcement may obtain a warrant to compel a blood draw despite your refusal.
How many DWIs is a felony in New Mexico?
A fourth DWI is a 4th-degree felony in New Mexico. The state uses a lifetime lookback period, so all prior DWI convictions count regardless of how long ago they occurred. A felony DWI carries a mandatory 18-month prison sentence that cannot be suspended or deferred, plus fines up to $5,000. The license revocation is forever, with an ignition interlock required for life — but 5 years from the date of conviction, and every 5 years after, you may apply to the district court to remove the interlock and restore your license (66-8-102P).
What is aggravated DWI in New Mexico?
Aggravated DWI applies when your BAC is 0.16% or higher — but also when you refuse a chemical test, cause bodily injury, or drive while revoked for a prior DWI (66-8-102D). At every offense level, aggravated DWI adds a separate mandatory consecutive jail term on top of the standard minimum: 48 hours for a first offense, 96 hours for a second (192-hour total minimum), and 60 days for a third (90-day total minimum). These added terms cannot be suspended, deferred, or taken under advisement.
Do I need an ignition interlock device after a first DWI in New Mexico?
Yes, New Mexico mandates an ignition interlock device for all first-time DWI offenders. After your license is revoked, you can obtain an IID license that allows you to drive only vehicles equipped with an approved IID. The IID requirement lasts 1 year for a first offense. New Mexico was one of the first states to require IID for first offenders, and studies have shown this policy significantly reduces repeat DWI rates.
Can New Mexico seize your vehicle for DWI?
Yes, New Mexico has vehicle seizure and forfeiture provisions for DWI offenses. A vehicle can be seized upon arrest for a second or subsequent DWI if the driver's license is already revoked for a prior DWI. For felony DWI (4th or subsequent), vehicle forfeiture is mandatory. The forfeited vehicle becomes property of the state. The vehicle owner may contest the forfeiture in court, but the burden is on the owner to prove the vehicle was not used in a DWI offense.
Do I need an SR-22 after a DWI in New Mexico?
Yes, New Mexico requires an SR-22 certificate of financial responsibility for license reinstatement after a DWI. You must maintain SR-22 insurance for a minimum of 3 years. The SR-22 requirement runs concurrently with the IID requirement. If your insurance lapses during the SR-22 period, the MVD will re-revoke your license.

Related Guide

DUI license recovery in New Mexico→

Step-by-step guide to getting your license back after a DUI in New Mexico — suspension periods, IID requirements, SR-22 insurance, reinstatement fees, and process.

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Disclaimer: This is informational only, not legal advice. DUI laws change frequently. Verify current requirements with New Mexico's statutes or consult a qualified DUI attorney in New Mexico.