Office of Nuclear Material Safety and Safeguards; Notice of Issuance of Final Backfit Guidance

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The U. S. Nuclear Regulatory Commission's (NRC) Office of Nuclear Material Safety and Safeguards (NMSS) has issued the final document, NMSS 10 CFR Part 70 Backfit Guidance. The final document provides guidance for implementing the backfit provisions in 10 CFR 70.76. As a result of this final issuance and as discussed in 10 CFR 70.76, backfit provisions are now effective for all part 70 requirements, except for subpart H, and following NRC approval of a licensee's Independent Safety Analysis (ISA) Summary, the requirements of 10 CFR 70.76 become effective for subpart H requirements.