Title 33 › Chapter CHAPTER 45— - TSUNAMI WARNING AND EDUCATION › § 3203
NOAA must run a program through the National Weather Service to detect tsunamis, forecast them, and warn people for the Pacific and Arctic regions and for the Atlantic region, including the Caribbean Sea and the Gulf of Mexico. The program must keep at least 80 percent of the DART buoy array working, use many kinds of detection tech, and keep equipment and data systems in good condition. It must make forecasting tools and inundation maps using U.S. and global ocean and Earth observing systems, seismic networks, historical data, bathymetry and elevation models, and new satellite or airborne methods. NOAA must work with the USGS and NSF so they provide fast seismic information and support seismic stations installed before April 18, 2017, and must move research results into operations (including research under section 3205). The program must operate warning centers, including the National Tsunami Warning Center in Alaska (covering Alaska and the continental U.S.) and the Pacific Tsunami Warning Center in Hawaii (covering Hawaii, the Caribbean, and other Pacific areas), plus any more centers needed. Those centers must watch seismic, buoy, tide, and other data all the time, check earthquakes, landslides, and eruptions for tsunami risk, run models to predict arrival times and flooding, update inundation estimates, and send forecasts and warnings to governments and the public using systems like NOAA Weather Radio and Wireless Emergency Alerts and mass communication tools that were in effect on April 18, 2017 and newer tools as they develop. Centers must back each other up, share data publicly, work with Coast Guard, FEMA, and local officials on port and response plans, support international warning efforts, and keep improving technology and models. NOAA must set uniform procedures and standards, provide resources such as supercomputing, coordinate needed assets from other federal agencies, and notify Congress within 30 days if forecasting is impaired, contractors fail or delay, or a significant tsunami warning happens; notices about a recent warning must include a brief analysis of model accuracy, which sensors worked or failed, how warnings were shared, and related findings.
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Navigation and Navigable Waters — Source: USLM XML via OLRC
Legislative History
Reference
Citation
33 U.S.C. § 3203
Title 33 — Navigation and Navigable Waters
Last Updated
Apr 6, 2026
Release point: 119-73