AP1000 Design Certification Renewal

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Nuclear Regulatory Commission 10 CFR Part 52 [NRC-2026-2377] RIN 3150-AL70 AGENCY: Nuclear Regulatory Commission. ACTION: Proposed rule and environmental assessment. SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to renew the AP1000 design certification and incorporate Revision 20 of the AP1000 design control document. The purpose of this rulemaking action is to update the AP1000 design to be consistent with changes made to the design during the ( printed page 65134) licensing, construction, and operation of Vogtle Electric Generating Plant, Units 3 and 4. This rulemaking incorporates AP1000 design control document Revision 20, which includes updates made to the AP1000 design to represent a current, construction-validated design. The NRC also proposes to issue an environmental assessment supporting this rule. DATES: Submit comments by November 13, 2026. ADDRESSES: Submit your comments, identified by Docket ID NRC-2026-2377, at https://www.regulations.gov . If your material cannot be submitted using https://www.regulations.gov , call or email the individual listed in the FOR FURTHER INFORMATION CONTACT section of this document for alternate instructions. Do not include any personally identifiable information (such as name, address, or other contact information) or confidential business information that you do not want publicly disclosed. All comments are public records; they are publicly displayed exactly as received, and will not b…