{"abstract":"The U.S. Nuclear Regulatory Commission (NRC) is amending its regulations to include new alternative emergency preparedness requirements for small modular reactors and other new technologies. This final rule acknowledges technological advancements and other differences from large light-water reactors that are inherent in small modular reactors and other new technologies. The NRC is concurrently issuing Regulatory Guide 1.242, \"Performance-Based Emergency Preparedness for Small Modular Reactors, Non-Light-Water Reactors, and Non-Power Production or Utilization Facilities.\"","action":"Final rule and guidance; issuance.","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/2023/11/16/2023-25163.html","cfr_references":[{"chapter":null,"citation_url":null,"part":50,"title":10},{"chapter":null,"citation_url":null,"part":52,"title":10},{"chapter":null,"citation_url":null,"part":72,"title":10}],"citation":"88 FR 80050","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective on December 18, 2023.","disposition_notes":null,"docket_ids":["NRC-2015-0225"],"dockets":[{"supporting_documents":[{"title":"Part 52 OMB Supporting Statement for Emergency Preparedness for Small Modular Reactors and Other New Technologies","document_id":"NRC-2015-0225-0336"},{"title":"08/23/2022: Chair C. 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Inquiry Regarding the Status of Guidance and rulemaking for Small Modular Reactors","document_id":"NRC-2015-0225-0316"}],"agency_name":"NRC","documents":[{"comment_count":null,"comment_start_date":null,"updated_at":"2023-11-16T17:58:20.735-05:00","comment_url":"https://www.regulations.gov/commenton/NRC-2015-0225-0341","allow_late_comments":null,"id":"NRC-2015-0225-0341","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":45,"id":"NRC-2015-0225","title":"Emergency Preparedness Requirements for Small Modular Reactors and Other New Technologies"}],"document_number":"2023-25163","effective_on":"2023-12-18","end_page":80078,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2023/11/16/2023-25163.xml","html_url":"https://www.federalregister.gov/documents/2023/11/16/2023-25163/emergency-preparedness-for-small-modular-reactors-and-other-new-technologies","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2023-25163?publication_date=2023-11-16","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2023-11-16/2023-25163/mods.xml","not_received_for_publication":null,"page_length":29,"page_views":{"count":4269,"last_updated":"2026-04-04 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2023-11-16/pdf/2023-25163.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2023-25163.pdf?1700055926","publication_date":"2023-11-16","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2023/11/16/2023-25163.txt","regulation_id_number_info":{"3150-AJ68":{"issue":"202310","html_url":"https://www.federalregister.gov/regulations/3150-AJ68/emergency-preparedness-requirements-for-small-modular-reactors-and-other-new-technologies-nrc-2015-0","title":"Emergency Preparedness Requirements for Small Modular Reactors and Other New Technologies [NRC-2015-0225]","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202310&RIN=3150-AJ68&operation=OPERATION_EXPORT_XML","priority_category":"Other Significant"}},"regulation_id_numbers":["3150-AJ68"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Part 52 OMB Supporting Statement for Emergency Preparedness for Small Modular Reactors and Other New Technologies","document_id":"NRC-2015-0225-0336"},{"title":"08/23/2022: Chair C. 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