# 2026-11670: FEMA Quietly Redraws Flood Lines for Dozens of Towns

2026-11670, Changes in Flood Hazard Determinations, is a Federal Register notice from Homeland Security Department, Federal Emergency Management Agency published 2026-06-11, effective These flood hazard determinations will be finalized on the dates listed in the table below and revise the FIRM panels and FIS report in effect prior to this determination for the listed communities.; PRIA reads it as touching household money (as of 2026-06-18).

- Canonical: https://policyrisk.com/federal-register/2026-11670
- As of: 2026-06-18
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-11670
- Title: Changes in Flood Hazard Determinations
- Type: Notice
- Agencies: Homeland Security Department; Federal Emergency Management Agency
- Citation: 91 FR 35507
- Published: 2026-06-11
- Effective: These flood hazard determinations will be finalized on the dates listed in the table below and revise the FIRM panels and FIS report in effect prior to this determination for the listed communities.
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-06-18

## In one line

FEMA Quietly Redraws Flood Lines for Dozens of Towns

## Summary

FEMA is updating flood risk maps for certain communities using new science and data. These changes affect flood zones, flood heights, and insurance rules, so residents and businesses might see new flood risks and insurance costs. People have 90 days after local notice to ask for a review before changes become final.

## Abstract

This notice lists communities where the addition or modification of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or the regulatory floodway (hereinafter referred to as flood hazard determinations), as shown on the Flood Insurance Rate Maps (FIRMs), and where applicable, in the supporting Flood Insurance Study (FIS) reports, prepared by the Federal Emergency Management Agency (FEMA) for each community, is appropriate because of new scientific or technical data. The FIRM, and where applicable, portions of the FIS report, have been revised to reflect these flood hazard determinations through issuance of a Letter of Map Revision (LOMR), in accordance with Federal Regulations. The current effective community number is shown in the table below and must be used for all new policies and renewals.

## Effects PRIA read

- Map updates can change your flood risk: cost, medium. FEMA revised Flood Insurance Rate Maps (FIRMs) and Flood Insurance Study (FIS) reports for specific communities to update Base Flood Elevations, flood depths, Special Flood Hazard Area boundaries or zone designations, and regulatory floodways. If you live or run a business in one of the listed comm…
- 90-day window to request reconsideration: benefit, low. From the date of the second local newspaper notice, any person has 90 days to ask the community to request that FEMA reconsider the flood hazard changes before they become final. The flood hazard information may change during that 90-day period.
- New community number required for policies: mixed, low. The notice states that the current effective community number shown in the table must be used for all new flood insurance policies and renewals for the listed communities. This affects how insurers identify the community on new policies and renewals once the map revisions are in effect.
- Community NFIP adoption requirement: cost, medium. FEMA states the revised FIRM and FIS reports are the basis of the floodplain management measures a community is required to adopt or to show evidence of having in effect in order to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP).

## Related documents

- [2026-20497](https://policyrisk.com/federal-register/2026-20497): Agency Information Collection Activities: Submission for OMB Review, Comment Request; Elevation Certificate/Floodproofing Certificate., 2026-10-07
- [2026-20458](https://policyrisk.com/federal-register/2026-20458): Agency Information Collection Activities: Submission for OMB Review, Comment Request; Hazard Mitigation Grant Programs, 2026-10-06
- [2026-19854](https://policyrisk.com/federal-register/2026-19854): Notice of Maximum Amount of Assistance Under the Individuals and Households Program, 2026-09-29
- [2026-19856](https://policyrisk.com/federal-register/2026-19856): Notice of Award Amount Adjustment for Serious Needs Assistance, 2026-09-29
- [2026-19898](https://policyrisk.com/federal-register/2026-19898): Notice of Adjustment of Disaster Grant Amounts, 2026-09-29
- [2026-19859](https://policyrisk.com/federal-register/2026-19859): Notice of Adjustment of Minimum Project Worksheet Amount, 2026-09-29

## Sources
- [2026-11670 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/11/2026-11670/changes-in-flood-hazard-determinations)
- [2026-11670 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-11/pdf/2026-11670.pdf)

## Related
- [Previous: 2026-11669, Changes in Flood Hazard Determinations](https://policyrisk.com/federal-register/2026-11669)
- [Next: 2026-11671, Changes in Flood Hazard Determinations](https://policyrisk.com/federal-register/2026-11671)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-11670 (as of 2026-06-18).