Draft Interim Staff Guidance: NRC Application Pathway for Reactor Designs Previously Authorized by U.S. Department of Energy or Department of War

The U.S. Nuclear Regulatory Commission (NRC) is soliciting public comment on its draft Interim Staff Guidance (ISG), DANU-ISG- 2026-XX, "NRC Application Pathway for Reactor Designs Previously Authorized by U.S. Department of Energy or Department of War." The purpose of this guidance is to provide a roadmap to NRC requirements, and associated implementing guidance, in select foundational areas to support streamlined NRC reviews of certain applications that propose to address the accomplishment of safety functions by leveraging pertinent information from prior U.S. Department of Energy (DOE) or Department of War (DOW) authorizations of demonstration reactors.