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Westinghouse - WAAP-13650, Pre-submittal Meeting AP1000 DCD Revision 20
	ML26055A329
Person / Time
Site:	05200006
Issue date:	02/24/2026
From:	; Westinghouse
To:	; Office of Nuclear Reactor Regulation
Shared Package
ML26055A327	List: ML26055A328; ML26055A329;
References
	WEC_LTR_260008 WAAP-13650
	Download: ML26055A329 (0)
	v • d • e

WAAP-13650, Pre-submittal Meeting AP1000 DCD Revision 20 (Non-Proprietary)

Pre-submittal Meeting AP1000 DCD Revision 20 2/26/2026 to WEC_LTR_260008 WAAP-13650, Revision 0

Agenda & Purpose Meeting Purpose

Pre-submittal Meeting for AP1000 DCD Revision 20 Agenda

Introductions and Opening Remarks

Reference Plant Approach

DCD Revision 20 Plan

DCD Revision 20 Discussion Topics

Discussion / Closing Remarks AP1000 is a trademark of Westinghouse Electric Company LLC, its affiliates and/or its subsidiaries in the United States of America and may be registered in other countries throughout the world. All rights reserved.

Unauthorized use is strictly prohibited. Other names may be trademarks of their respective owners to WEC_LTR_260008 WAAP-13650, Revision 0

Reference Plant Approach for Future AP1000 Plants

AP1000 New Plant Deployment in the US Clean safe electricity demand Vogtle 3&4 completion Construction & Operational Experience Executive Order 14302

The AP1000 plant design is mature, safe, & predictable Evolutionary passive systems are NRC approved Design is complete Supply chain has been established First-of-a-kind challenges are resolved Inspected and demonstrated all ITAAC met Safely operating in the US today

Reference Plant Alignment The DCD will be aligned with the Reference Plant license Changes at the Reference Plant are resolved Consistent with EO 14302, Reinvigorating the Nuclear Industrial Base The DCD will be aligned with the Reference Plant license to maintain consistency in future AP1000 COL Applications to WEC_LTR_260008 WAAP-13650, Revision 0

Efficient Path to Future AP1000 Plant Licensing Site-Specific Information Vogtle 3&4 Licensing Changes Licensing Path COLA Approval DCD Revision 20 Construction Standard COL Content Part 1: Admin & Financial Info.

Part 3: Environmental Report Part 5: Emergency Plan Part 6: Limited Work Auth.

Part 7: Departures & Exemptions Part 8: Security Plan Part 9: Withheld Info Part 11: Enclosures (QA Plan)

Non-DCD Content 4

DCD Revision 20 provides an efficient path to COL approval by minimizing departures to WEC_LTR_260008 WAAP-13650, Revision 0

AP1000 DCD Revision 20

Westinghouse will submit DCD Revision 20 prior to March 31 It will contain all information necessary to bring the DCD up to date

Application is anticipated to be reviewed/approved based on:

The information matches the VEGP 3&4 license, which is safely operating today The design complies with the AEA and all regulations, as demonstrated at Vogtle 3&4 Reference Plant LARs and 50.59 like changes are resolved (separate slide)

Roadmap demonstrates the DCD changes align the Reference Plant (separate slide)

Precedence set during the AP1000 DC extension in 2021

Anticipate NRC approval within 2026 Timeline supports future AP1000 new plant activities Approach meets all regulations - Aligns with the Reference Plant in operation today to WEC_LTR_260008 WAAP-13650, Revision 0

Content and Structure of DCD Revision 20

The DCD will align with the Reference Plant to the maximum extent DCD R20 chapters will be nearly identical to the Vogtle 3&4 licensing basis Vast majority of all Vogtle 3&4 departures are directly applicable to the generic DCD R20 Standard COL content will be included - COL action to confirm applicability (separate slide)

Post Vogtle COD changes will be included (cutoff Oct 31, 2025)

Administrative differences between the Vogtle 3&4 license and the DCD R20 Update Header and Footers Remove Vogtle 3&4 site-specific information (separate slide)

Re-insert Conceptual Design Information, double brackets ((( )))

Close Piping DAC Incorporate minor readability changes for the purpose of the DCD Align COL Items Incorporate the Vogtle 3&4 Tier 2* exemption (separate slide)

Relocate the endorsed ASME III alternatives to Code Case list Relocate the Vogtle Tech Specs, Bases, and TRM into DCD R20 Chapter 16 Re-insert Information (e.g. Appendix 1B, DCD Introduction, and Inservice Testing Table)

Only administrative differences between Vogtle License and the DCD to WEC_LTR_260008 WAAP-13650, Revision 0

Implementing Reference Plant Changes

The last major AP1000 DCD amendment was in 2011

To facilitate construction at Vogtle, multiple departures were implemented

Many of these departures (LAR and 50.59 like) apply to future plants

Westinghouse will include the lessons learned in DCD Revision 20

For LARs, the technical review was performed with the Reference Plant Precedent for referencing reference plant LARs in subsequent applications

For 50.59 like changes, Reg. Guide 1.206 establishes the NRC position:

Departures from Tier 2 made in compliance 50.59 like process are considered resolved 7

Approach is consistent with NRC guidance, the ADVANCE Act Section 207, and Executive Orders to WEC_LTR_260008 WAAP-13650, Revision 0

AP1000 DCD Revision 20 Roadmap DCD Revision 20 Reference Plant License Matches Demonstrates DCD Revision 20 Changes Match the Reference Plant to WEC_LTR_260008 WAAP-13650, Revision 0

Standard COL Content - Example COL Information Item From DCD Rev. 19 STD COL Commitment included in DCD R20 Standard content will be included in DCD R20 (color coded) -

Action assigned to licensee to confirm alignment to WEC_LTR_260008 WAAP-13650, Revision 0

Site Specific COL Content - Example Site specific information will be not be included in DCD Revision 20 COL Information Item Reinserted into DCD R20 Vogtle 3&4 Site-Specific Info Removed from DCD R20 to WEC_LTR_260008 WAAP-13650, Revision 0

DCD Tier 2* Designation

Certain information in the AP1000 DCD is designated Tier 2*

NRC approval to modify

During Vogtle construction, additional Tier 2* criteria was created for the AP1000 plant through an exemption

This criteria will be translated into the DCD (Intro Section 3.5) to reduce exemptions by future applicants and holders to WEC_LTR_260008 WAAP-13650, Revision 0

Discussion to WEC_LTR_260008 WAAP-13650, Revision 0

ML26055A329

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