National Landslide Preparedness Act Reauthorization Act of 2025

This bill renews and updates the federal program that helps communities prepare for and respond to landslides. It puts more focus on the growing risks from heavy rain and “atmospheric rivers,” improves early warnings for debris flows, and strengthens help for emergency managers. It also makes sure Indian tribes, Tribal organizations, and Native Hawaiian organizations are directly included in planning, grants, and alerts. The program’s national strategy and database must better track where risks are rising, including areas affected by extreme rain, drought, volcanoes, earthquakes, tsunamis, thawing permafrost, and glacial retreat. NASA is added to the interagency team to improve science and monitoring. The bill updates the 3D mapping work that supports landslide forecasts and response.

It expands grants to help states, local governments, Indian tribes, Tribal organizations, and Native Hawaiian organizations research, map, assess, and monitor landslide hazards, with priority for places that recently had deadly landslides. It also boosts funding to $35 million, with a required share for buying, deploying, and fixing landslide early warning systems in high‑risk areas. Regional partnerships, starting in Alaska and other needed regions, will coordinate long‑term research and monitoring. The next national strategy must include an assessment of threats from atmospheric rivers and other extreme rain events.

• Who is affected: Communities in landslide‑prone areas; state and local governments; Indian tribes, Tribal organizations, and Native Hawaiian organizations; emergency managers; universities and research groups.
• What changes: Stronger early warnings and emergency response; better mapping and data; more inclusive planning; added NASA expertise; larger grants and funding, including set‑aside funds for early warning systems.
• When: Upon enactment; regional partnerships formed as soon as practicable; the next national strategy must evaluate risks from extreme rain and atmospheric rivers.