ML24067A258

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RIC-2024 W14 Slides - NRC Ncoovert and Jgreives Future of Construction Oversight
ML24067A258
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Issue date: 03/12/2024
From: Nicole Coovert, Jon Greives
NRC/RGN-I/DORS, NRC/RGN-II, Office of Nuclear Reactor Regulation
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Download: ML24067A258 (14)
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RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Nicole Coovert Director (Acting), Region II, Division of Construction Oversight Jonathan Greives Chief, Projects Branch 4, Region I, Division of Operating Reactor Safety The Future of Advanced Reactor Construction Oversight 1

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Advanced Reactor Construction Landscape oDifferent designs using new fuel, materials, and design codes/standards oCo-location with fuel facilities oWide range of sizes oEnhanced safety margin/risk profile oGreater use of factory fabrication oShorter construction schedules o10 CFR Parts 50, 52, and 53 oDepending on the licensing requirements, different information may be available during construction (e.g., 10 CFR Part 52 plants would have a final design; 10 CFR Part 50 plants likely would not)

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE 3

Construction Projects Lessons Learned

  • AP1000 Reactors, V.C. Summer Units 2 and 3, Vogtle Units 3 and 4 (10 CFR Part 52)

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Lessons Learned 10 CFR Part 52 Lessons-Learned from Construction at Vogtle 3 & 4 and V.C. Summer 2

& 3, dated January 16, 2024, ML23325A202 NUREG-1055, Improving Quality and the Assurance of Quality in the Design and Construction of Nuclear Power Plants, issued May 1984, ML063000293 Watts Bar Unit 2 Construction Lessons Learned Report, dated December 20, 2017, ML17356A269 4

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE 5

Construction Inspection Oversight Program OVERSIGHT PROCESS AND INSPECTION SCOPING SHOULD BE RISK-INFORMED, FLEXIBLE, SCALABLE, PERFORMANCE BASED, AND TECHNOLOGY INCLUSIVE.

FOCUSING INSPECTION PLANNING ON DISCRETE OR SPECIFIC INSPECTION ITEMS CAN LEAD TO INEFFICIENT USE OF RESOURCES WHEN THE CONSTRUCTION SCHEDULE REGULARLY CHANGES.

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Enforcement Process for Facilities in Construction 6

Significance determination for construction oversight should appropriately characterize finding significance based on risk to operations and should be comparable to risk thresholds in the Reactor Oversight Process (source: SRM-SECY-10-0140).

Determining the significance of construction findings should be based upon a risk-informed, safety-focused inspection and enforcement process, with time spent proportional to the safety and risk significance of the structure, system, or component, along with the potential for an issue to have remained undetected and impact plant operations (source:

AP1000 Lessons Learned, ML23325A202).

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Assessing Licensee Performance During Construction 7

The assessment element for an overall construction oversight program provides a key method for determining and resolving issues impacting safety.

Looking forward, small modular reactors and advanced reactors may have shorter construction timeframes and, therefore, include faster completion times for structures and systems.

The current annual assessment frequency is potentially too long for a faster moving project, and as a result, future construction oversight programs should consider a system of more continuous assessment and more frequent public communications.

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Risk-Informed Technology Inclusive Informed by Experience Innovative Performance Based Scalable Comprehensive Key Guiding Principles of Future Construction Oversight Source: SECY-23-0048, Vision for the Nuclear Regulatory Commissions Advanced Reactor Construction Oversight Program, dated June 6, 2023

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Fundamental Safety Functions A generic set of reactor safety functions applicable to all reactor technologies:

reactivity control heat removal radionuclide retention Identify Safety-Based Commonalities among All Reactors

+ Security and Operational Programs

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE 10 Performance Monitoring Enforcement (including significance determination)

Assessing Performance

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Performance MonitoringInspecting Quality 11 More Specific More Flexible SSC/ITAAC Targeting Baseline Inspection Scoping Matrices Availability-Based Inspection

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Determining Significance of Noncompliances 12 Significance of Impact to Fundamental Safety Functions Credit for Existing Barriers Likelihood that Deficiency Exists During Operation

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Assessment Overall Project Quality Assessment for Operating License Issuance or 10 CFR 52.103(g) finding Monitor Onsite Construction Quality through Licensee Performance Monitor Reactor/Module Quality through Manufacturer Performance Continuous Assessment
1. Baseline Inspection Program Adjustment
2. Program Feedback Combined License, Construction Permit, Limited Work Authorization, or Early Site Permit Holders Manufacturer (if applicable)

Onsite Construction Inspection (from Project-Specific Matrix)

Offsite Manufacturer Inspection (from Project-Specific Matrix)

Vendors Vendor Inspection Plan Vendor Oversight Advanced Reactor Construction Action Matrix

3. Supplemental Inspection
4. Design-Specific Matrix Update Conceptual Framework

RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024

  1. nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE 2024
  • Engage external stakeholders
  • Engage Commission
  • Issue guidance 2025
  • Issue guidance (contd)
  • Inspector training 2023
  • Develop vision
  • Develop information SECY
  • Internal communication
  • Translate vision into inspection concepts/options 2026 2027
  • Construction begins on lead projects Development Timeline
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