USA: "Approval of American Society of Mechanical Engineers Unconditioned Code Cases"
Updated on : 07-10-2025
| The U.S. Nuclear Regulatory Commission (NRC) is amending its regulations to incorporate by reference a regulatory guide that approves unconditioned code cases published by the American Society of Mechanical Engineers (ASME). This action allows nuclear power plant applicants and licensees to use the code cases as voluntary alternatives to engineering standards for nuclear power plant components. These standards are set forth in the ASME Boiler and Pressure Vessel Code and ASME Operation and Maintenance of Nuclear Power Plants, which are currently incorporated by reference into the NRC's regulations.> The final rule is effective 26 January 2026, unless significant adverse comments are received by 25 November 2025. If the direct final rule is withdrawn as a result of such comments, timely notice of the withdrawal will be published in the Federal Register. Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration only for comments received on or before this date. Comments received on this direct final rule will also be considered to be comments on a companion proposed rule (notified as G/TBT/N/USA/2241) published in the Proposed Rules section of this issue of the Federal Register. The incorporation by reference of certain material listed in the regulation is approved by the Director of the Federal Register as of 26 January 2026.90 Federal Register (FR) 46319, 26 September 2025; Title 30 Code of Federal Regulations (CFR) Part 50https://www.govinfo.gov/content/pkg/FR-2025-09-26/html/2025-18769.htmhttps://www.govinfo.gov/content/pkg/FR-2025-09-26/pdf/2025-18769.pdfThis direct final rule and the proposed rule notified as G/TBT/N/USA/2241 are identified by Docket Number NRC-2024-0163. The Docket Folder is available on Regulations.gov at https://www.regulations.gov/docket/NRC-2024-0163/document and provides access to primary documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders are asked to submit comments to the USA TBT Enquiry Point by or before 4pmEastern Time on 25 November 2025. Comments received by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with NRC and will also be submitted to the Docket on Regulations.gov if received within the comment period. |
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