S. 3881 reauthorizes and modernizes the federal government's tsunami detection, warning, and education programs by expanding monitoring capabilities with satellite systems and water level gauges, establishing coordinated procedures across all tsunami warning centers, and requiring annual congressional reports on program progress. The bill significantly increases collaboration with Indian Tribes, Tribal organizations, and Native Hawaiian organizations in all aspects of tsunami warning and research, while requiring NOAA to develop comprehensive hazard maps, inundation models, and evacuation guidelines for various tsunami sources including earthquakes and volcanic activity. The legislation authorizes $35 million annually from fiscal years 2027 through 2031, with at least 27% allocated to hazard mitigation and 8% to research, and mandates that NOAA submit annual reports detailing funding allocation and consult directly with tribal communities on program implementation. Key provisions also include standardized warning procedures, fail-safe backup drills at warning centers, new research and development plans due within 12 months, and studies on alert system effectiveness and Weather Radio coverage in tsunami-prone areas, all due within specified timeframes ranging from 60 days to 15 months after enactment.
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