This bill, titled the Tsunami Warning, Research, and Education Act of 2026, reauthorizes and significantly amends the existing Tsunami Warning and Education Act to enhance the nation's ability to detect, forecast, warn, and mitigate tsunami impacts. It formally integrates Indian Tribes , Native Hawaiian organizations , and Tribal organizations as key partners across all tsunami-related activities, including new definitions and mandatory government-to-government consultation. The Tsunami Forecasting and Warning Program is strengthened by emphasizing the timeliness and accuracy of warnings and expanding data sources to include the global navigation satellite system network , tidal gauges, and buoys. It mandates interagency cooperation among NOAA, USGS, NSF, and NASA for seismic and satellite data, requiring the USGS to incorporate tsunami notifications into its Earthquake Early Warning System. Tsunami warning centers must maintain fail-safe warning capability , conducting biannual service back-up drills and annual tsunami warning drills with federal, state, local, and Tribal emergency managers, while also standardizing procedures and appointing Tsunami Warning Coordinators . To improve public response and alert dissemination, the Administrator must evaluate the effectiveness of tsunami alert levels and update the system within one year. A review of NOAA Weather Radio All Hazards Program coverage is also required, leading to recommendations for increased coverage. Additionally, responsibilities for using the Integrated Public Alert and Warning System (IPAWS) to deliver tsunami alerts must be clarified and documented through updated memoranda of understanding with FEMA and FCC. A comprehensive GAO study is mandated to assess coordination among all relevant federal agencies, state, local, and Tribal entities involved in tsunami programs, identifying collaboration effectiveness and recommending enhancements. The Administrator must then report on the implementation of these recommendations. The National Tsunami Hazard Mitigation Program is expanded to include the development of vertical evacuation structures and other life-saving measures, with hazard assessments covering a broader range of seismic and non-seismic sources, coastal digital elevation models, and probabilistic tsunami hazard analysis maps. The Tsunami Research Program is enhanced to include research on tsunamis from both seismic and non-seismic sources, with a focus on social and behavioral science, requiring a data portal, decision support tools, and a new Research and Development Plan every 36 months. New provisions include mandatory annual reports to Congress detailing funds spent on hazard mitigation and research programs. The bill authorizes appropriations of $35,000,000 for each of fiscal years 2027 through 2031, with specific minimum allocations for hazard mitigation and research programs. Finally, a significant report is required from the Comptroller General on preparing for, mitigating, responding to, and recovering from major tsunami events in specific high-risk zones like the Cascadia Subduction Zone , Alaska, and the Kuril-Kamchatka Subduction Zone. This report will include strategies for critical infrastructure and interagency search and rescue, with the Administrator providing a strategy for implementing its findings. Outreach responsibilities are also expanded to include tsunami-prone, rural communities, educating them about the TsunamiReady program and enhancing emergency planning.