New Mexico DWI: First Offense

Last reviewed: 2026-07-17

A first DWI in New Mexico is generally classified as a misdemeanor.

• Jail: none (aggravated: 48 hours mandatory) – 90 days; mandatory min none standard; 48 hours if aggravated (0.16+/refusal)
• Fine: $0–$500 (up to $500 plus fees)
• License suspension: 1-year revocation (6-month administrative) – 1 year; hardship: interlock license available
• Ignition interlock: Required — NM mandates IID for ALL DWI convictions including first — 1 year minimum. National first-mover on universal interlock (2005).
• Alternative disposition: Supervised probation + DWI school + screening standard; conditional discharge possible for first offenders (avoids conviction).

Lookback period: lifetime. Lifetime lookback — all prior DWIs count. 4th offense = felony; 7th+ carries multi-year prison mandatory minimums.