Regulatory Framework for Fusion Machines

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Nuclear Regulatory Commission 10 CFR Parts 20, 30, 37, 50, 51, 72, 110, 150, 170, and 171 [NRC-2023-0071] RIN 3150-AL00 ( printed page 9476) AGENCY: Nuclear Regulatory Commission. ACTION: Proposed rule; guidance; and request for comment. SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to augment the existing byproduct material framework to be inclusive of fusion machines. The NRC is proposing requirements that are technology-inclusive to accommodate the wide variety of anticipated fusion machine designs across the National Materials Program. The NRC is also issuing for comment draft guidance for the implementation of this proposed rule, entitled NUREG-1556, Volume 22, “Consolidated Guidance About Materials Licenses: Program-Specific Guidance About Fusion Machine Licenses.” The NRC will conduct at least one public meeting to promote full understanding of the proposed rule and to facilitate public comments. We seek comment on all aspects of this proposed rule. DATES: Submit comments by May 27, 2026. Comments received after this date will be considered if it is practical to do so, but the Commission is able to ensure consideration of only comments received before this date. ADDRESSES: You may submit comments by any of the following methods (unless this document describes a different method for submitting comments on a specific subject). The NRC encourages electronic comment submission through the Federal rulemaking website …