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The purpose of these guidelines is to help coastal communities in the five Pacific states (Alaska, California, Hawaii, Oregon, and Washington) understand their tsunami hazards, exposure, and vulnerability, and to mitigate the resulting risk through land use and site planning, and building design. Emergency response and evacuation are only approached as they relate to those mitigation strategies. They follow seven basic principles around the community's risk knowledge, the location and design of new buildings, and evacuation. They stress the importance of compiling and applying good local tsunami hazard information, as the more locational mitigation is used, the less design mitigation is required. They also underline that building codeds should be amended to fully address risk mitigation in the context of building renovation. (UNEsCO)