The Nuclear Regulatory Commission (NRC) published a Federal Register notice on July 16 requesting comments on a regulatory basis supporting a “limited scope” rulemaking to develop physical security requirements for advanced reactors. For this rulemaking, “advanced reactors” means “light-water small modular reactors (SMRs) and non-light water reactors (non-LWRs)” which includes, but “is not fully coextensive with,” the definition of an “Advanced Nuclear Reactor” in the recently enacted Nuclear Energy Innovation and Modernization Act. The deadline to submit comments is August 15.
We previously reported on this rulemaking process, which started with the NRC Staff’s August 1, 2018, report to the Commission, evaluating options for revising physical security regulations for advanced reactors. We also reported on the Commission’s approval of the NRC’s Staff’s proposed rulemaking plan, which occurred on November 19, 2018. The NRC’s physical security requirements for large LWRs—in 10 CFR § 73.55>—is focused on preventing significant core damage and spent fuel sabotage. Current regulations require each site to have at least 10 armed responders for emergency security response (10 CFR § 73.55(k)(5)(ii)), and an on-site secondary alarm station to monitor potential issues (10 CFR § 73.55(i)(4)(iii)).