On November 20, 2019 (84 FR 64113), the Nuclear Regulatory Commission (NRC) published a notice in the federal register requesting public comments on draft Revision 2 to NUREG-2155 “Implementation Guidance for 10 CFR Part 37, ‘Physical Protection of Category 1 and Category 2 Quantities of Radioactive Material.’ ” NUREG-2155 Revision 1 has been updated to revise questions & answers and guidance related to general provisions in the rule, background investigations and access authorization programs, and physical protection requirements during use and in transit. Please submit comments by February 18, 2020. Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration only for comments received before this date.

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NRC 11-20-2019 revise NUREG-2155 10CFR37 guidance