NRC approves two new versions of Holtec spent fuel storage canisters
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Table of Contents
The Nuclear Regulatory Commission has finalized a rule adding two new versions of the HI-STORM UMAX canister system to its list of approved designs for storing spent nuclear fuel. These are designated as Version B1 and Version B2.
Why it matters: This is an administrative update that allows nuclear facilities to use two slightly different versions of an existing storage canister design without needing a brand-new safety review from scratch. It keeps the regulatory list current with what manufacturers have already been approved for, streamlining paperwork for licensees who want to use these specific models.
Who it affects
- Nuclear power plant operators and independent spent fuel storage installation (ISFSI) holders in the United States
This information comes from a May 29, 2026 filing by the Nuclear Regulatory Commission in the Federal Register; you should check the original document at FR Doc. 2026-10935 before relying on it for legal or compliance purposes.
Agency: Nuclear Regulatory Commission
Source: Federal Register — read the official document