{"abstract":"The U.S. Nuclear Regulatory Commission (NRC) is amending its regulations that establish regulatory requirements for nuclear power reactor applicants and licensees to mitigate beyond-design-basis events. The NRC is making generically applicable the requirements in NRC orders for mitigation of beyond-design-basis events and for reliable spent fuel pool instrumentation (SFPI). This rule also addresses a number of petitions for rulemaking (PRMs) submitted to the NRC following the March 2011 Fukushima Dai-ichi event. This rulemaking is applicable to power reactor licensees and power reactor license applicants.","action":"Final rule.","agencies":[{"raw_name":"NUCLEAR REGULATORY COMMISSION","name":"Nuclear Regulatory Commission","id":383,"url":"https://www.federalregister.gov/agencies/nuclear-regulatory-commission","json_url":"https://www.federalregister.gov/api/v1/agencies/383","parent_id":null,"slug":"nuclear-regulatory-commission"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2019/08/09/2019-16600.html","cfr_references":[{"chapter":null,"citation_url":null,"part":50,"title":10},{"chapter":null,"citation_url":null,"part":52,"title":10}],"citation":"84 FR 39684","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective on September 9, 2019.","disposition_notes":null,"docket_ids":["Docket Nos. PRM-50-96, PRM-50-97, PRM-50-98, PRM-50-100, PRM-50-101, and PRM-50-102","NRC-2011-0069, NRC-2011-0189, and NRC-2014-0240"],"dockets":[],"document_number":"2019-16600","effective_on":"2019-09-09","end_page":39722,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2019/08/09/2019-16600.xml","html_url":"https://www.federalregister.gov/documents/2019/08/09/2019-16600/mitigation-of-beyond-design-basis-events","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2019-16600?publication_date=2019-08-09","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2019-08-09/2019-16600/mods.xml","not_received_for_publication":null,"page_length":39,"page_views":{"count":4833,"last_updated":"2026-07-28 12:15:07 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2019-08-09/pdf/2019-16600.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2019-16600.pdf?1565268317","publication_date":"2019-08-09","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2019/08/09/2019-16600.txt","regulation_id_number_info":{"3150-AJ49":{"issue":"201904","html_url":"https://www.federalregister.gov/regulations/3150-AJ49/mitigation-of-beyond-design-basis-events-mbdbe-nrc-2014-0240-","title":"Mitigation of Beyond Design Basis Events (MBDBE) [NRC-2014-0240] ","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201904&RIN=3150-AJ49&operation=OPERATION_EXPORT_XML","priority_category":"Other Significant"}},"regulation_id_numbers":["3150-AJ49"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Regulatory Analysis Addendum","document_id":"NRC-2014-0240-0033"},{"title":"Environmental Assessment","document_id":"NRC-2014-0240-0032"},{"title":"NRC Response to Public Comments","document_id":"NRC-2014-0240-0031"},{"title":"Backfitting and Issue Finality Assessment","document_id":"NRC-2014-0240-0030"},{"title":"Draft Regulatory Guide DG-1319 - Integrated Response Capabilities for Beyond-Design-Basis Events","document_id":"NRC-2014-0240-0008"},{"title":"Draft Regulatory Guide DG-1317 - Wide-Range Spent Fuel Pool Level Instrumentation","document_id":"NRC-2014-0240-0007"},{"title":"Draft Regulatory Guide DG-1301 - Flexible Mitigation Strategies for Beyond-Design-Basis Events","document_id":"NRC-2014-0240-0006"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/3150-AJ49/mitigation-of-beyond-design-basis-events-mbdbe-nrc-2014-0240-","title":"Mitigation of Beyond Design Basis Events (MBDBE) [NRC-2014-0240] "},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=NRC-2014-0240","supporting_documents_count":7,"docket_id":"NRC-2014-0240","regulation_id_number":"3150-AJ49","title":"Mitigation of Beyond-Design-Basis Events (MBDBE)","checked_regulationsdotgov_at":"2019-08-14T03:00:08Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":39684,"subtype":null,"title":"Mitigation of Beyond-Design-Basis Events","toc_doc":"Mitigation of Beyond-Design-Basis Events","toc_subject":null,"topics":["Administrative practice and procedure","Antitrust","Classified information","Education","Fees","Fire prevention","Incorporation by reference","Intergovernmental relations","Nuclear power plants and reactors","Penalties","Radiation protection","Reporting and recordkeeping requirements","Whistleblowing"],"type":"Rule","volume":84}