New Mexico Statewide Rule

New Mexico Floodplain Management and NFIP Compliance

Heavy RestrictionsApplies statewide across New Mexico (2026)

Key Facts

Local authority: NMSA 3-18-6
Federal standard: 44 CFR Part 60
State coordinator: NM DHSEM
Permit: Required in SFHA

Last verified: September 5, 2026Source: NMSA 1978 § 3-18-7 - Flood or mudslide hazard areas; designation

Summary

New Mexico law requires communities to participate in the National Flood Insurance Program and adopt floodplain ordinances meeting state and federal minimums administered by the Department of Homeland Security and Emergency Management.

For the purpose of minimizing or eliminating damage from floods or mudslides in federal emergency management agency and locally designated flood-prone areas and for the purpose of promoting health, safety and the general welfare, a county or municipality with identified flood or mudslide hazard areas shall by ordinance: (1) designate and regulate flood plain areas having special flood or mudslide hazards; (2) prescribe standards for constructing, altering, installing or repairing buildings and other improvements under a permit system within a designated flood or mudslide hazard area;

Source: NMSA 1978 § 3-18-7 - Flood or mudslide hazard areas; designationView official code

Full Breakdown

NMSA Chapter 3, Article 18, Section 3-18-6 grants municipalities authority to adopt floodplain regulations, and NMSA 4-37-1 extends similar power to counties. To participate in the NFIP, local governments must adopt ordinances meeting 44 CFR Part 60 standards: regulating new construction in Special Flood Hazard Areas, requiring elevation of lowest floors, prohibiting fill in floodways without no-rise certification, and issuing floodplain development permits. The state Floodplain Manager within DHSEM coordinates training, model ordinances, and compliance reviews. Non-participating jurisdictions risk loss of federal disaster assistance and flood insurance availability.

Violations & Penalties

Non-compliant construction can be ordered removed, denied insurance, and the community may face NFIP probation or suspension.

Frequently Asked Questions

Does New Mexico require flood insurance for homes?

Federally backed mortgages on homes in mapped Special Flood Hazard Areas require flood insurance through the NFIP or an accepted private policy.

Can I build in a floodway in New Mexico?

Generally no. Construction in regulatory floodways requires engineering analysis showing no rise in base flood elevation and a local floodplain permit.

Sources

NMSA 3-18-6 Municipal Floodplain Authority

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