MIL-OSI USA: S. 1626, National Landslide Preparedness Act Reauthorization Act of 2025

Source: US Congressional Budget Office

S. 1626 would amend and reauthorize programs established under the National Landslide Preparedness Act. The bill would authorize the appropriation of $47 million annually from 2025 through 2030 for the National Landslide Hazards Reduction Program. Under current law, the authorization for the program expired in 2024. The U.S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration allocated roughly $14 million for the program in 2024.

S. 1626 also would authorize the appropriation of $40 million each year from 2025 through 2030 for the 3D Elevation Program, a USGS program to acquire high-resolution 3-dimensional elevation data. Under current law, that program expired at the end of 2024. No funds were allocated for the program in that year.

CBO assumes that the bill will be enacted near the end of 2025 and that the specified amounts will be provided in each year. Based on historical spending patterns for the programs, CBO estimates that implementing the bill would cost $424 million over the 2025-2030 period and $90 million after 2030.

The costs of the legislation, detailed in Table 1, fall within budget function 300 (natural resources and environment).

The CBO staff contact for this estimate is Kelly Durand. The estimate was reviewed by H. Samuel Papenfuss, Deputy Director of Budget Analysis.

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