ML25064A348

From kanterella
Jump to navigation Jump to search
March 5 2025 EP for Advance Reactors Workshop Slides
ML25064A348
Person / Time
Issue date: 03/05/2025
From:
Office of Nuclear Security and Incident Response
To:
References
Download: ML25064A348 (1)
v • d • e


Text

Emergency Preparedness (EP) for Advanced Reactors Public Workshop Eric Schrader EP Specialist Edward Robinson Sr. EP Specialist Charles (Milt) Murray EP Specialist Todd Smith, Ph.D.

Senior Level Advisor Office of Nuclear Security and Incident Response Division of Preparedness and Response March 5, 2025 Kylar Coleman-Foley General Scientist Nuclear Regulatory Apprentice Cindy Rosales-Cooper Acting Chief Policy and Oversight Branch Michael Waters Acting Division Director

  • Welcome
  • Lessons from Licensing Experience
  • Status of Relevant EP Rulemakings
  • Status of EP-Related Guidance
  • Harmonizing 50.160 and Part 53 language
  • Supporting Research
  • Q&A
  • Solicitation of Feedback for Future Workshops AGENDA

WELCOME Michael Waters, Acting Director Division of Preparedness and Response (DPR)

Cindy Rosales-Cooper, Acting Chief DPR/Policy and Oversight Branch

  • NRC is applying lessons from current and past licensing activities to improve the guidance.
  • NRC is updating key EP guidance for clarity in the regulatory process.
  • NRC seeks to understand stakeholder perspectives and potential solutions to address EP challenges.
  • NRC welcomes suggestions for future EP workshops.

The NRC Approach to Emergency Preparedness Todd Smith, Ph.D.

DPR/ Senior Level Advisor

EP is about the capabilities to act Radiological emergency preparedness ensures protective actions can and will be taken is an independent layer of defense in depth provides dose savings is risk-informed (allows use of judgment)

RIPB EP is not the same as RIPB Design RIPB Design RIPB EP EP SPACE RIPB: risk-informed, performance-based

Preparedness begins with a proven planning basis NUREG-0396, Planning Basis for the Development of State and Local Government Radiological Emergency Response Plans in Support of Light Water Nuclear Power Plants, November 1978 Distance Time Materials EPZ, exposure pathways, protective measures, communication, assessment Timeliness of classification and notification, protective measures, communication, EPZ Detection and assessment capabilities, radiological protection, protective measures Spectrum of Accidents Information comes from many quantitative and qualitative sources, including, but not limited to, licensing basis events, acts of sabotage, contiguous hazards, environmental reports, consequence analyses, real events Planning Basis Functions and Elements Emergency Planning

The EPZ is a planning tool for preparedness Design Basis Accidents Beyond Design Basis NUREG-0396, Planning Basis for the Development of State and Local Government Radiological Emergency Response Plans in Support of Light Water Nuclear Power Plants, November 1978 Effectiveness of Protective Measures

EP involves the Whole Community FEMA findings and determinations only required for offsite plans if the EPZ extends beyond the site boundary

Applying Lessons Learned From Licensing Experience Edward Robinson Sr. EP Specialist DPR/Reactor Licensing Branch

50.160:

Modernizing EP for Advanced Reactors 10 CFR 50.160 This regulation adapts emergency preparedness (EP) for advanced reactors, incorporating their inherent safety and reduced risk profiles.

RG 1.242 This guidance promotes risk-informed EP, enabling optimized EPZ sizes and streamlined 10 CFR 50.160 compliance.

Pre-Application Activities Reactor Licensing Reviews Fuel Fabrication (TRISO-X)

Engaging with Applicants and Vendors https://www.nrc.gov/reactors/new-reactors/advanced/who-were-working-with/pre-application-activities.html

50.160(b)(1)(iii)(B): Protective Actions In accordance with 10 CFR 50.160(b)(1)(iii)(B),

applicants shall ensure that the capability exists to implement and maintain protective actions for onsite personnel for emergency conditions and recommend protective actions to offsite authorities as conditions warrant. This is applicable even if its identified that No Plume Exposure Pathway (PEP) EPZ exists beyond facility structures OR PEP EPZ is at the Site Boundary.

50.160 Observations

RG 1.242 Observations: Appendix A 1

When PRA insights are used in an EPZ determination, the PRA is assumed to be adequate, and the EP analysis should not exclude event sequences solely because the frequency is below a chosen cutoff.

2 Appendix A only provides guidance for applying PRA insights in EPZ determinations.

NEI 18-04 (endorsed)

Provides the framework for the Licensing Modernization Project (LMP). Helps establish a licensing basis by identifying licensing basis events, classifying SSCs, and evaluating defense in depth adequacy.

NEI 24-05 (under review)

Seeks to provides guidance specifically on EP for advanced reactors. Supports emergency preparedness regulations by focusing on how EP might be tailored to align with the risk profiles of different advanced reactor designs.

Pre-Application Engagements:

Maximizing Success Early Issue Identification Identify and address potential regulatory challenges before formal submission. Clarify applicable regulations, guidance, and licensing pathways.

Improved Licensing Strategy Align licensing approach with NRC regulations.

Establish appropriate scope and level of detail needed in the application.

Efficient Resource Use Reduce likelihood of significant rework or delays.

Optimize technical and financial resources by focusing on key regulatory concerns early.

NRC Advanced Reactor Staff Visit Kairos Powers Proposed Molten Salt-Cooled Reactor, NRC, 2023

More Information and Updates Licensing Activities for Advanced Reactors (Non-LWR) https://www.nrc.gov/reactors/new-reactors/advanced/who-were-working-with.html Licensing Activities for Small Modular Reactors https://www.nrc.gov/reactors/new-reactors/smr/licensing-activities.html Pre-Application Process https://www.nrc.gov/reactors/new-reactors/advanced/new-app/general-guidance/pre-app-process.html

Break

Status of Relevant EP Rulemakings Charles (Milt) Murray EP Specialist Policy and Oversight Branch

  • 10 CFR 50.160, Emergency Preparedness for Small Modular Reactors, Non-Light Water Reactors, and Non-Power Production or Utilization Facilities
  • Published on November 16, 2023
  • 10 CFR 50.200, Regulatory Improvements for Production and Utilization Facilities Transitioning to Decommissioning
  • The draft final rule offers an alternative, graded approach to current requirements for onsite and offsite radiological emergency preparedness at a nuclear power reactor.

Status of EP-related Rulemakings

  • Part 53 Rulemaking: Risk Informed, Technology-Inclusive Regulatory Framework for Advanced Reactors
  • Incorporates the performance-based EP requirements in 10 CFR 50.160
  • Extended Public Comment Period ended on 2/28/2025 Status of EP-related Rulemakings

Status of Relevant EP Guidance Eric Schrader EP Specialist Policy and Oversight Branch

  • Staff working to publish draft for public comment in 2025 EP Workshop for Advanced Reactors Status of Key EP Guidance Activities
  • Staff working to publish draft - May/June
  • Early public engagement meeting - Summer 2025
  • Public comment period - Fall 2025
  • Complete ISG - Spring 2026
  • NEI 24-05, An Approach for Risk-Informed Performance -Based Emergency Planning
  • Public Meeting on initial observations planned for April 2025 EP Workshop for Advanced Reactors Status of Key EP Guidance Activities

RG 1.242 Performance-Based Emergency Preparedness for Small Modular Reactors, Non-Light-Water Reactors, and Non-Power Production or Utilization Facilities

  • Harmonizing 50.160 guidance with the proposed Part 53 EP requirements
  • Updating Appendix A and B:
  • guidance for spectrum of accidents
  • variability in dose-distance calculations
  • clarifying use of PRA (e.g., uncertainty vs cliff-edge effects)
  • Evaluation of the existing regulatory frameworks
  • Nth-of-a-Kind Draft White Paper Micro-Reactor Licensing and Deployment Considerations (ML24270A206)
  • Microreactor Activities Plan Workshop Feb 20th 2025
  • Microreactor Activities Integration Tables (ML25036A199)
  • Development/revision to technology-inclusive guidance, such as ARCAP, ARCOP, RG 1.242, RG 4.7
  • Supporting Research ADVANCE Act: EP for Micro-Reactors

Research to Support EP Guidance Todd Smith, Ph.D.

DPR/ Senior Level Advisor

10 miles 2 miles NRC is conducting research on inherent variability in dose-distance curves NEA/CRPPH/R(2024)1, Understanding Dose Prognosis in Nuclear and Radiological Emergency Preparedness and Response Within Countries, October 2024.

Even with the same source term and meteorological conditions, dose projections will vary

NRC is conducting research on existing plans for responding to security events site boundary 0

250 500 250 500 meters Security event DHS/FEMA, Radiological Dispersal Device Response Guidance:

Planning for the First 100 Minutes, November 2017.

Questions

Discussion and Future Workshop Ideas ?

Contact US Eric Schrader EP Specialist DPR/POB Eric.Schrader@nrc.gov Cindy Rosales-Cooper, Acting Chief DPR/POB Cindy.Rosales-Cooper@nrc.gov Charles (Milt) Murray EP Specialist DPR/POB Charles.Murray@nrc.gov

Retrieved from "https://kanterella.com/w/index.php?title=ML25064A348&oldid=5455092"