{"abstract":"The U.S. Nuclear Regulatory Commission (NRC) is amending its regulations to certify the NuScale standard design for a small modular reactor. Applicants or licensees intending to construct and operate a NuScale standard design may do so by referencing this design certification rule. The applicant for certification of the NuScale standard design is NuScale Power, LLC.","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/2023/01/19/2023-00729.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":10}],"citation":"88 FR 3287","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":["https://www.federalregister.gov/api/v1/documents/C1-2023-00729"],"dates":"This final rule is effective on February 21, 2023. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of February 21, 2023.","disposition_notes":null,"docket_ids":["NRC-2017-0029"],"dockets":[{"supporting_documents":[{"title":"Request for Extension of Public Comment Period","document_id":"NRC-2017-0029-0012"},{"title":"Letter from James Joosten Requesting Access to Safeguards and Proprietary Information","document_id":"NRC-2017-0029-0006"},{"title":"Request for Extension of Comment Period for PR-52 - NuScale Small Modular Reactor Design Certification Submitted by Sarah Fields of Uranium Watch and Tim Judson of Nuclear Information and Resource Service.)","document_id":"NRC-2017-0029-0005"}],"agency_name":"NRC","documents":[{"comment_count":null,"comment_start_date":null,"updated_at":"2025-05-20T23:04:17.223-04:00","comment_url":"https://www.regulations.gov/commenton/NRC-2017-0029-0016","allow_late_comments":false,"id":"NRC-2017-0029-0016","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":3,"id":"NRC-2017-0029","title":"Design Certification for the NuScale Small Modular Reactor Design Certification"}],"document_number":"2023-00729","effective_on":"2023-02-21","end_page":3311,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2023/01/19/2023-00729.xml","html_url":"https://www.federalregister.gov/documents/2023/01/19/2023-00729/nuscale-small-modular-reactor-design-certification","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2023-00729?publication_date=2023-01-19","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2023-01-19/2023-00729/mods.xml","not_received_for_publication":null,"page_length":25,"page_views":{"count":15645,"last_updated":"2026-07-27 04:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2023-01-19/pdf/2023-00729.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2023-00729.pdf?1674049514","publication_date":"2023-01-19","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2023/01/19/2023-00729.txt","regulation_id_number_info":{"3150-AJ98":{"issue":"202210","html_url":"https://www.federalregister.gov/regulations/3150-AJ98/nuscale-small-modular-reactor-design-certification-nrc-2017-0029-","title":"NuScale Small Modular Reactor Design Certification [NRC-2017-0029]","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202210&RIN=3150-AJ98&operation=OPERATION_EXPORT_XML","priority_category":"Other Significant"}},"regulation_id_numbers":["3150-AJ98"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Request for Extension of Public Comment Period","document_id":"NRC-2017-0029-0012"},{"title":"Letter from James Joosten Requesting Access to Safeguards and Proprietary Information","document_id":"NRC-2017-0029-0006"},{"title":"Request for Extension of Comment Period for PR-52 - NuScale Small Modular Reactor Design Certification Submitted by Sarah Fields of Uranium Watch and Tim Judson of Nuclear Information and Resource Service.)","document_id":"NRC-2017-0029-0005"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/3150-AJ98/nuscale-small-modular-reactor-design-certification-nrc-2017-0029-","title":"NuScale Small Modular Reactor Design Certification [NRC-2017-0029]"},"comments_count":0,"agency_id":"NRC","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=NRC-2017-0029","supporting_documents_count":3,"docket_id":"NRC-2017-0029","document_id":"NRC-2017-0029-0016","regulation_id_number":"3150-AJ98","title":"Design Certification for the NuScale Small Modular Reactor Design Certification","checked_regulationsdotgov_at":"2025-05-21T02:55:04Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":3287,"subtype":null,"title":"NuScale Small Modular Reactor Design Certification","toc_doc":"NuScale Small Modular Reactor Design Certification","toc_subject":null,"topics":["Administrative practice and procedure","Antitrust","Fees","Incorporation by reference","Nuclear power plants and reactors","Penalties","Reporting and recordkeeping requirements"],"type":"Rule","volume":88}