# FEMA NFHL

FEMA's National Flood Hazard Layer: the effective flood-hazard zones of the Flood Insurance Rate Maps.

> [!NOTE]
> **Not available yet.** This dataset is imported for parcel-level screening. The launch is metro-level, so nothing in the app or the API reads it yet.

## Source

| Fact | Value |
| --- | --- |
| Publisher | FEMA |
| Product | National Flood Hazard Layer |
| Source | [https://www.fema.gov/flood-maps/national-flood-hazard-layer](https://www.fema.gov/flood-maps/national-flood-hazard-layer) |
| Category | Hazard |
| Period | The release date of each state's file |
| Refresh cadence | Monthly |
| Geographies | Flood-zone polygons, imported state by state (a pilot state so far). There are no metro measures. |
| Availability | Not available yet (parcel level) |
| Cadastre key | `nfhl` |

## Licence and attribution

| Fact | Value |
| --- | --- |
| Licence | Public domain (U.S. federal government work) |
| Terms | [https://www.fema.gov/about/website-information](https://www.fema.gov/about/website-information) |
| Register status | Production approved; licence open |
| Allowed uses | `evaluation`, `internal`, `public_display`, `derived_analytics`, `redistribution`, `bulk_export`, `public_geometry` |

This source requires no credit line beyond naming the publisher. Cite it as **FEMA, National Flood Hazard Layer**.

## Known gaps and caveats

- Imported for parcel-level screening, which is not available yet; nothing at metro level reads it.
- Coverage is not complete nationwide and changes continually.

## See also

- [All datasets](https://getcadastre.com/docs/datasets)
- [Rights and attribution](https://getcadastre.com/docs/rights)
- [Data freshness](https://getcadastre.com/docs/freshness)