On October 05, 2016 (81 FR 69088), the Nuclear Regulatory Commission (NRC) published a notice in the federal register about issuing Revision 1 to Regulatory Guide (RG) 5.12, “General Use of Locks in Protection and Control of: Facilities Radioactive Materials, Classified Information, Classified Matter, and Safeguards Information.” This RG describes methods and procedures that the staff of the NRC considers acceptable for the selection, use, and control of locking devices in the protection of areas, facilities, certain radioactive materials, and specific types of information (e.g. classified matter, National Security Information (NSI), Restricted Data (RD), Formerly Restricted Data (FRD), Safeguards Information (SGI)). Some specific items addressed include the basic characteristics of a lock that licensees should consider when selecting locks, and information on when licensees should change combinations or keys. The revised scope of the guide now includes control and protection of: (1) Classified information/matter, (2) safeguards information, (3) an aggregated Category 1 or Category 2 quantity of radioactive material listed in 10 CFR Part 37 Appendix A, and (4) spent nuclear fuel. Revision 1 to RG 5.12 will be available after October 5, 2016.

NRC 10-5 Updated RG 5.12 Use of Locks