NRC Blesses New Nuclear Pump-Testing Rulebook
Published Date: 6/4/2026
Notice
Summary
The Nuclear Regulatory Commission (NRC) just released a new guide that approves the latest ASME OM-2 code for testing parts at nuclear plants. This means nuclear facilities now have a clear, official way to run their safety tests starting June 4, 2026. If you work at or manage a nuclear site, get ready to follow these updated rules and send any feedback by July 6, 2026—no extra costs, just safer operations!
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
NRC Endorses ASME OM-2 Code
The NRC is issuing Regulatory Guide (RG) 1.220 endorsing the ASME Operation and Maintenance OM-2 Code, Component Testing Requirements at Nuclear Facilities, 2024 Edition as an acceptable method for developing and implementing an Inservice Testing (IST) program. This endorsement applies to applicants and licensees of all types of nuclear facilities and takes effect on June 4, 2026.
RG Positions Are Generally Voluntary
The NRC states that applicants and licensees generally are not required to comply with the positions in RG 1.220, and issuance of the guide does not constitute backfitting or forward fitting. The guide is effective June 4, 2026, with a post-promulgation comment period ending July 6, 2026.
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