Nuclear Regulatory Commission June 11, 2021 – Federal Register Recent Federal Regulation Documents

The U.S. Nuclear Regulatory Commission (NRC) is issuing Revision 3 to Regulatory Guide (RG), 1.187. This Revision (i.e., Revision 3) addresses a clarification to the RG in response to post- promulgation comments on RG 1.187, Revision 2. This RG provides licensees with a method that the NRC considers acceptable for use in complying with the Commission's regulations on the process by which licensees, under certain conditions, may make changes to their facilities and procedures as described in the final safety analysis report (FSAR) (as updated) (also referred to as the updated final safety analysis report), and conduct tests or experiments not described in the FSAR (as updated), without obtaining a license amendment pursuant to NRC requirements.