Regulatory Guide 1.60

<p>Regulatory Guide 1.60 DESIGN RESPONSE SPECTRA FOR SEISMIC DESIGN OF NUCLEAR POWER PLANTS</p>

<p>This regulatory guide describes an approach that the staff of the U.S. Nuclear Regulatory Commission (NRC) considers acceptable for defining response spectra for the seismic design of nuclear power plants to satisfy the requirements of Appendix A, &ldquo;Seismic and Geologic Siting Criteria for Nuclear Power Plants,&rdquo; to Part 100, &ldquo;Reactor Site Criteria,&rdquo; of Title 10 of the <em>Code of Federal </em><em>Regulations </em>(10 CFR Part 100) (Ref. 1). Regulatory Guide (RG) 1.60 forms part of the licensing basis for a number of nuclear power plants constructed during the 1970s and 1980s. Specifically, the safe shutdown earthquake ground motion (SSE) for these nuclear power plants is defined by a RG 1.60 response spectrum.</p>