Data / Federal rules / 2025-12397
Revising the Duration of Design Certifications
The Nuclear Regulatory Commission published this proposed rule in the Federal Register on July 2, 2025. Comments closed on August 1, 2025.
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What the agency says
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to revise the duration of design certifications (DCs). Specifically, this proposed rule would replace the 15-year duration for DCs with a 40-year duration period, both for existing DCs currently in effect and generically for future DCs, including renewals. This proposed rule would not change the date of issuance or renewal for existing DCs (i.e., the start date by which an existing DC may be referenced would remain unchanged). The proposed rule would also incorporate a minor editorial correction.
Key facts
- Document number
- 2025-12397
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Nuclear Regulatory Commission
- Published
- July 2, 2025
- Comments due
- August 1, 2025
- Dates
- Submit comments on the proposed rule by August 1, 2025. 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.
- Docket
- NRC-2025-0018
- Regulation ID (RIN)
- 3150-AL26
- Code of Federal Regulations
- 10 CFR 52
- Topics
- Administrative practice and procedure; Antitrust; Fees; Nuclear power plants and reactors; Penalties; Reporting and recordkeeping requirements
- Significant
- Yes, under Executive Order 12866
- Pages
- 3
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Everything from the Nuclear Regulatory Commission · Rules on administrative practice and procedure · Rules on antitrust · Rules on fees · Published in July 2025
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.