The U.S. Nuclear Regulatory Commission (NRC) is amending its environmental protection regulations by updating the Commission's 2013 findings on the environmental effect of renewing the operating license of a nuclear power plant. This final rule redefines the number and scope of the environmental issues that must be addressed during the review of each application for license renewal. As part of this update, the NRC is issuing Revision 2 to NUREG-1437, "Generic Environmental Impact Statement for License Renewal of Nuclear Plants" (LR GEIS), to account for new information and to address the impacts of initial license renewals, which the previous versions considered, as well as first subsequent license renewals. The LR GEIS, Revision 2, provides the technical basis for the final rule.