# Federal Register #2026-20926

FEMA Public Comment Notice on Proposed Flood Hazard Determinations in Montana and Missouri

**Buyer:** Federal Emergency Management Agency (FEMA), Department of Homeland Security
**Posted:** October 14, 2026
**Respond By:** January 12, 2027
**Identifier:** 2026-20926

FEMA is notifying the public of proposed flood hazard determinations affecting communities in Montana and Missouri.
- **Government buyer:** Federal Emergency Management Agency (FEMA), U.S. Department of Homeland Security.
- **Affected communities:** Missoula County and the City of Missoula, Montana; and the City of St. Louis, St. Louis County, and listed incorporated communities and villages in Missouri.
- **Proposed changes:** Flood Insurance Rate Maps and related Flood Insurance Study reports may be revised to show updated Base Flood Elevations, flood depths, Special Flood Hazard Area boundaries or zone designations, and regulatory floodways.
- **Purpose:** The maps and studies inform local floodplain management measures associated with participation in the National Flood Insurance Program.
- **Comments and reconsideration:** FEMA invites public comments and eligible requests for reconsideration of the preliminary maps and studies.
- **Procurement scope:** This is a regulatory notice, not a procurement opportunity. No products, services, quantities, OEMs, or vendors are requested.

### Description

FEMA requests comments on proposed flood hazard determinations for communities listed in the notice. The determinations may add or modify Base Flood Elevations, base flood depths, Special Flood Hazard Area boundaries or zone designations, and regulatory floodways on Flood Insurance Rate Maps and, where applicable, supporting Flood Insurance Study reports. The preliminary maps and reports are available for inspection online and at the listed community map repositories. They provide the basis for floodplain management measures required for communities to participate in the National Flood Insurance Program.

[View original listing](https://www.federalregister.gov/documents/2026/10/14/2026-20926/proposed-flood-hazard-determinations)