Open for Comment: Licensing Requirements for Microreactors and Other Reactors With Comparable Risk Profiles

Nuclear Regulatory Commission — The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to establish a risk-informed and performance- based regulatory framework for rapid licensing of new microreactors and other reactors with comparable risk profiles and for high-volume deployment of these reactors. The proposed rule would provide a flexible set of licensing pathways, reduce regulatory burden, and ensure that safety and security requirements remain commensurate with the potential hazards posed by these facilities. (44 days remaining)

Open for Comment: Licensing Requirements for Microreactors and Other Reactors With Comparable Risk Profiles

Nuclear Regulatory Commission — The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to establish a risk-informed and performance- based regulatory framework for rapid licensing of new microreactors and other reactors with comparable risk profiles and for high-volume deployment of these reactors. The proposed rule would provide a flexible set of licensing pathways, reduce regulatory burden, and ensure that safety and security requirements remain commensurate with the potential hazards posed by these facilities. (44 days remaining)

Type: comment-period | Source: federalregister.gov


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    "documentNumber": "2026-08550",
    "title": "Licensing Requirements for Microreactors and Other Reactors With Comparable Risk Profiles",
    "summary": "The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to establish a risk-informed and performance- based regulatory framework for rapid licensing of new microreactors and other reactors with comparable risk profiles and for high-volume deployment of these reactors. The proposed rule would provide a flexible set of licensing pathways, reduce regulatory burden, and ensure that safety and security requirements remain commensurate with the potential hazards posed by these facilities.",
    "agency": "Nuclear Regulatory Commission",
    "commentUrl": "http://www.regulations.gov/commenton/NRC-2025-0379-0011",
    "commentsCloseOn": "2026-06-15",
    "daysUntilClose": 44,
    "url": "https://www.federalregister.gov/documents/2026/05/01/2026-08550/licensing-requirements-for-microreactors-and-other-reactors-with-comparable-risk-profiles"
  },
  "source": {
    "url": "https://www.federalregister.gov/documents/2026/05/01/2026-08550/licensing-requirements-for-microreactors-and-other-reactors-with-comparable-risk-profiles",
    "api": "federalregister.gov"
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