Title 33 › CHAPTER 45 — TSUNAMI WARNING AND EDUCATION › § 3203
NOAA, through the National Weather Service, must run a program to detect, forecast, and warn about tsunamis for the Pacific and Arctic Oceans and for the Atlantic Ocean, including the Caribbean Sea and the Gulf of Mexico. The program must keep at least 80 percent of the Deep-ocean Assessment and Reporting of Tsunamis (DART) buoys working, use many kinds of detection tech (including satellites and airborne sensing), keep equipment and data systems in good working order, and run forecasting models and maps that use U.S. and global ocean and Earth observing systems, seismic networks (including the Advanced National Seismic System), historical tsunami records, elevation and sea‑floor data, and new methods as they develop. It must be able to send clear warnings, including graphics, to governments and the public using existing federal alert systems like NOAA Weather Radio and Wireless Emergency Alerts, and should work with other observing networks and undersea cables when practical. NOAA must support or run tsunami warning centers, including the National Tsunami Warning Center in Alaska (for Alaska and the continental U.S.) and the Pacific Tsunami Warning Center in Hawaii (for Hawaii, the Caribbean, and other Pacific areas), plus any extra centers needed. These centers must watch seismic, deep ocean, tidal, and other data all the time; check earthquakes, landslides, and volcanic events for tsunami risk; use many models to predict arrival time, flooding, currents, and duration; update inundation estimates using the Integrated Ocean Observing System; share forecasts and warnings with federal, state, tribal, and local officials and the public; coordinate with hazard mitigation, the Coast Guard, and FEMA on port and harbor readiness; keep public data and after-action analyses available; keep backup and fail-safe warning capabilities; and follow uniform operating procedures and standards. NOAA must also set equipment requirements, move research into operations, keep supercomputing resources available, work with other federal agencies for needed assets, and notify the Senate Commerce Committee and the House Science Committee within 30 days of major equipment or contractor failures or of a significant tsunami warning. If the notice is about a significant warning, it must include brief analysis of model accuracy, which monitoring gear did or did not detect the event, how warnings were communicated with partners, and other relevant findings.
Full Legal Text
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
Sep 23, 2026
Release point: 119-110