|FEMA’s most recent study of coastal seismic and tsunami loads was done in association with the FEMA Coastal Construction Manual (FEMA-55). This manual was developed to provide design and construction guidance for structures built in coastal areas throughout the United States. The Coastal Construction Manual (CCM) addresses seismic loads for coastal structures and provides information on the tsunami hazard and associated loads. The conclusion of the CCM’s authors is that tsunami loads are far too great and that, in general, it is not feasible or practical to design normal structures to withstand these loads. It should be noted that the study was for conventional construction, and did not take into account the possibility of special design and construction details that would be possible for critical facilities.