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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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July 2025
Latest News
DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
18th International Probabilistic Safety Assessment and Analysis (PSA 2023)
Technical Session|Panel|PSA Panels
Monday, July 17, 2023|1:00–2:45PM EDT|300D
Session Chair:
Amanda Spalding (Westinghouse Electric Co.)
Alternate Chair:
Askin Guler Yigitoglu
Session Organizer:
Michael D. Muhlheim
The Nuclear Regulatory Commission is undergoing rulemaking to develop 10 CFR Part 53. Part 53 provides a risk-informed, performance-based regulatory framework, with requirements scaled based on design features and safety margin. The current reactor licensing regulations (Parts 50 and 52) provide deterministic requirements that define the design capabilities required to achieve the desired margin. Any of these licensing pathways provide viable options for advanced nuclear reactors. Compared to Parts 50/52, the differences in Part 53 are dramatic. Part 53 provides frequency and consequence-oriented requirements compared to prescriptive requirements in Parts 50/52. Additionally, Part 53 is technology-inclusive compared to being optimized for a specific technology, has explicit consideration of defense-in-depth compared to operating experience, and includes expanded use of graded equipment compared to conservative assumptions and analyses. NRC staff is listening to all stakeholders regarding the proposed Part 53 rulemaking and has made changes in response to stakeholder feedback. This session will discuss the status of Part 53 and how it could affect stakeholders.
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Presentation Slides (Visible to Attendees) — NRC Presentation
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