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New York Statewide Rule

Floodplain Development Standards in New York

Heavy RestrictionsApplies statewide across New York (2026)

Key Facts

Floodplain Statute
ECL Article 36
Construction Code
Uniform Code, ASCE 24
Program
NFIP participation
Baseline
Cannot be weakened
Last verified: September 5, 2026Source: New York State Senate

Summary

New York Environmental Conservation Law and the Uniform Code require all municipalities participating in the National Flood Insurance Program to adopt and enforce minimum floodplain development standards that meet or exceed federal and state baselines.

1. Every local government with land use jurisdiction over any area of special flood hazard that was, prior to the effective date of this article, a participant in the national flood insurance program shall continue to maintain such participation in the national flood insurance program. 2. Every local government with land use jurisdiction over any area of special flood hazard that was not, prior to the effective date of this article, directly participating in the national flood insurance program but was relying on state administration of the minimum land use regulations necessary to meet the requirements of the national flood insurance program, must apply for and complete all requirements for participation in the national flood insurance program.

Source: New York State SenateView official code

Full Breakdown

Environmental Conservation Law Article 36 directs DEC to coordinate the state floodplain management program and requires participating communities to adopt local laws meeting NFIP minimums. The Uniform Fire Prevention and Building Code under Executive Law Article 18 incorporates ASCE 24 flood-resistant construction standards that apply statewide outside NYC. Substantial improvement and substantial damage rules, base flood elevation, and freeboard requirements are uniform. Municipalities may adopt higher standards but cannot weaken the state and federal baseline without losing NFIP eligibility.

Violations & Penalties

Building in a Special Flood Hazard Area without an elevation certificate or below the required base flood elevation can void flood insurance, trigger code enforcement orders, and result in civil penalties. Communities that fail to enforce can be suspended from NFIP, ending federally backed insurance and disaster aid.

Frequently Asked Questions

Does New York require flood-resistant construction in flood zones?
Yes. The Uniform Code under Executive Law Article 18 incorporates ASCE 24 flood-resistant standards statewide for new construction in mapped Special Flood Hazard Areas.
Can a town opt out of floodplain rules?
Not without losing NFIP participation. ECL Article 36 requires local laws meeting federal minimums, and dropping out eliminates federally backed flood insurance for residents.

Sources

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