Rulemaking

Modernizing Reactor Licensing, Safety Oversight, and Siting Practices

🏛 Nuclear Regulatory Commission (NRC)NRC-2025-0975

Energy Regulation & Permitting Nuclear Energy

Documents

Total comments

36 awaiting analysis

Comment status

Open

Last activity

Aug 2, 2026

In this docket

Documents

Rules, notices, and supporting material — the primary rule pinned first.

All 33 Supporting & Related Material 29 Proposed Rule 3

Supporting & Related Material· Jul 16, 2026
DG-1426 An Approach for a Risk-Informed Evaluation Process Supporting Alternative Acceptance Criteria for Emergency Core Cooling Systems→
Supporting & Related Material· Jul 16, 2026
DG-1466 Guidance for Implementation of 10 CFR 50.59 Changes Tests and Experiments Proposed Revision 4 to Regulatory Guide 1.187→
Supporting & Related Material· Jul 16, 2026
DG-1425 Alternative Radiological Source Terms for Evaluating Design-Basis Accidents at Nuclear Power Reactors Proposed Rev 2 to RG 1.183→
Supporting & Related Material· Jul 16, 2026
DG-1430 Performance-Based Emergency Preparedness Proposed Revision 1 to Regulatory Guide 1.242→
Supporting & Related Material· Jul 16, 2026
DG-1263 Revision 1 Establishing Analytical Limits for Zirconium-Based Alloy Cladding Proposed New Regulatory Guide 1.224→
Supporting & Related Material· Jul 16, 2026
DG-1463 Meteorological Monitoring Programs for Nuclear Power Plants. Proposed Revision 2 to Regulatory Guide 1.23→
Supporting & Related Material· Jul 16, 2026
DG-1462 A Performance-Based Approach to Define the Site-Specific Earthquake Ground Motion Proposed Rev 1 to RG 1.208→
Supporting & Related Material· Jul 16, 2026
DG-1262 Revision 1 Determining Post Quench Ductility Proposed New Regulatory Guide 1.223→
Supporting & Related Material· Jul 16, 2026
DG-1464 Guidance for Content of Applications Under 10 CFR 50.220 and 52.220 Proposing Risk-Informed and Performance-Based Alternative Acceptance Criteria→
Supporting & Related Material· Jul 16, 2026
Regulatory Analysis for the Proposed Rule Modernizing reactor Licensing Safety Oversight and Siting Practices NRC-2025-0975 RIN 3150-AL44→
Supporting & Related Material· Jul 16, 2026
DG-1434 Addressing the Consequences of Fuel Dispersal in Light-Water Reactor Loss of Coolant Accidents Proposed New Regulatory Guide 1→
Supporting & Related Material· Jul 16, 2026
DG-1465 Guidance for a Technology Inclusive Content of Application Methodology to Inform the Licensing Basis and Content of Applications for Licenses Cert→
Supporting & Related Material· Jul 16, 2026
DG-1456 Emergency Response Planning and Preparedness for Nuclear Power Reactors Proposed Revision 8 to Regulatory Guide 1.101→
Supporting & Related Material· Jul 16, 2026
DG-1428 Plant-Specific Applicability of the Transition Break Size Proposed New Regulatory Guide 1.258→
Supporting & Related Material· Jul 16, 2026
DG-1454 Implementation of Determinate and Data-Backed Thresholds for Reactor Safety Assessments Proposed New Regulatory Guide 1.269→
Supporting & Related Material· Jul 16, 2026
DG-1457 Guidance on Making Changes to Emergency Plans for Nuclear Power Reactors Proposed Revision 2 to Regulatory Guide 1.219→
Supporting & Related Material· Jul 16, 2026
LR-ISG-2026-01 Updated Review Criteria for License Renewal→
Supporting & Related Material· Jul 16, 2026
OMB Burden Tables for Modernizing Reactor Licensing Safety Oversight and Siting Practices Proposed Rule→
Supporting & Related Material· Jul 16, 2026
Draft Environmental Assessment for the Proposed Rule Modernizing Reactor Licensing Safety Oversight and Siting Practices NRC-2025-0975 RIN 3150-AL44→
Supporting & Related Material· Jul 16, 2026
OMB Supporting Statement for Information Collections Contained in Modernizing Reactor Licensing Safety Oversight and Siting Practices Proposed Rule→
Supporting & Related Material· Jul 16, 2026
DG-1261 Revision 1 Measuring Breakaway Oxidation Behavior Proposed New Regulatory Guide 1.222→
Supporting & Related Material· Jul 16, 2026
DG-1467 Assuring the Availability of Funds for Decommissioning Nuclear Reactors Proposed Revision 3 to Regulatory Guide 1.159→
Supporting & Related Material· Jul 16, 2026
NUREG-0800 Chapter 14 Section 14.3 Inspections Tests Analyses and Acceptance Criteria→
Supporting & Related Material· Jul 16, 2026
DG-1468 Guidance for Implementation of 10 CFR 50.221 Credibility Requirements for Modeling and Simulation Proposed New Regulatory Guide 1→
Supporting & Related Material· Jul 16, 2026
DG-1461 Guidance for Changes During Construction for New Nuclear Power Plants Being Constructed Under a Combined License→
Supporting & Related Material· Jul 16, 2026
DG-1460 Applications for Nuclear Power Plants. Proposed Revision 2 to Regulatory Guide 1.206→
Supporting & Related Material· Jul 16, 2026
DG-4036 Graded Approach to Site Characterization for New Reactor Applications Proposed New Regulatory Guide 4.29→
Supporting & Related Material· Jul 16, 2026
Unofficial Redline Rule Language for the Proposed Rule Modernizing Reactor Licensing Safety Oversight and Siting Practices NRC-2025-0975 RIN 3150-AL44→
Supporting & Related Material· Jul 16, 2026
[Withdrawn] DG-4037 Preparation of Environmental Reports for Nuclear Power Stations Proposed Revision 5 to Regulatory Guide 4.2→