2025-21784RuleSignificant

Nuclear Regs Now Come with Built-In Expiration Dates

Published Date: 12/3/2025

Rule

Summary

The Nuclear Regulatory Commission is adding expiration dates to some of its rules to keep regulations fresh and focused, following a new government order. This change affects anyone dealing with nuclear regulations and starts January 8, 2026, unless people speak up by January 2. It’s a smart move to cut outdated rules and save time and money in the long run.

Analyzed Economic Effects

8 provisions identified: 7 benefits, 0 costs, 1 mixed.

Many NRC rules get built‑in sunsets

The NRC is adding conditional sunset dates to a number of existing regulations. The direct final rule is effective January 8, 2026 (unless withdrawn after comments by January 2, 2026), and many amended sections are written to cease to have effect on January 8, 2027 unless the NRC decides to extend that cessation date after public input.

Future NRC rules must include sunsets

Section 2.807 is revised so that all regulations the NRC issues after January 8, 2026 under the Atomic Energy Act, the Energy Reorganization Act, or the Nuclear Waste Policy Act that are not required by statute or part of a regulatory permitting regime will include a conditional sunset date no more than 5 years after the regulation's effective date.

Fitness‑for‑duty testing facility rules removed

Subpart F of 10 CFR part 26 (licensee testing facilities) is set to cease on January 8, 2027 unless extended. The rule states no licensee fitness-for-duty programs currently use these facilities because they are no longer cost-beneficial and market laboratories certified to HHS standards are a more efficient alternative.

Aircraft impact assessment rule to be removed

The NRC plans to sunset 10 CFR 50.150 (aircraft impact assessment) on the same conditional timeline. The preamble states that the costs of implementing 50.150 for future reactors would not be justified by increased safety today and that similar analyses are covered by other regulations (for example, 10 CFR 50.155 and proposed part 53).

Pre‑application site review (Appendix Q) may end

Appendix Q to 10 CFR part 50, which provided for NRC staff pre-application site reports on site suitability, is set for conditional cessation on January 8, 2027 unless extended. The preamble notes the downside that removing Appendix Q could remove some flexibility for part 50 applicants to address siting issues early, though similar benefits could be provided via other pre-application interactions or by applying for an Early Site Permit under part 52.

Unused hearing procedures will be sunsetted

The rule adds a cessation date that will remove Subpart F (early site suitability decisions), Subpart N (expedited proceedings with oral hearings), and Subpart O (legislative hearings) of 10 CFR part 2 on January 8, 2027 unless extended. The preamble states these procedures have not been used (some last used in the 1970s) and are no longer needed.

Duplicative record and exemption rules eliminated

Several recordkeeping and exemption provisions (for example, 10 CFR 31.21, 32.3, 34.87, 35.5, and multiple exemptions provisions duplicative of 10 CFR 30.11) are identified for sunsetting and will cease (subject to the January 8, 2027 cessation framework). The NRC says these provisions are duplicative of other existing rules.

Obsolete and seldom‑used provisions will roll off

The rule identifies several provisions as obsolete or seldom used — for example, 10 CFR part 76 (certification of gaseous diffusion plants, not used since 1996), 10 CFR part 160 (trespassing on Commission property), 10 CFR 51.124 (duty to comment on other agencies' EIS), and multiple 'interpretation' provisions stating only the General Counsel can bind the Commission. These are set to cease under the same January 8, 2027 framework unless extended.

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Key Dates

Published Date
Comments Due
Rule Effective
12/3/2025
1/2/2026
1/8/2026

Department and Agencies

Department
Independent Agency
Agency
Nuclear Regulatory Commission
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