Standard Technical Specifications, Westinghouse Advanced Passive 1000 (AP1000) Plants, Volume 2: Bases (NUREG-2191, Volume 2, Revision 1)

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Publication Information

Manuscript Completed: January 2024
Date Published: January 2024

Office of Nuclear Reactor Regulation
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

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Abstract

This NUREG contains the Standard Technical Specifications (STS) for Westinghouse Advanced Passive 1000 (AP1000) plants. This NUREG is based on the generic technical specifications (TS) of the AP1000 design certification rule, Appendix D, "Design Certification Rule for the AP1000 Design," to Title 10 of the Code of Federal Regulations (10 CFR) Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants.” This NUREG is also based on the plant-specific TS for Vogtle Electric Generating Plant (VEGP) Unit 3, for which the first combined license (COL) under 10 CFR 52.97, "Issuance of combined licenses," was granted by the U.S.  Nuclear Regulatory Commission (NRC) (COL No. NFP-91), as revised on September 9, 2013, by Amendment  13 to the VEGP Unit 3 COL (78 FR 64541) (Agencywide Documents Access and Management System  (ADAMS) Accession No. ML13238A337). Subsequently, the NRC has issued additional amendments to the  VEGP Unit 3 TS (i.e., through Amendment 186), which inform the basis for Revision 1 of the AP1000 STS  NUREG.

The AP1000 generic TS were modeled on the format and applicable content of the improved STS for pre-AP1000 Westinghouse plants in NUREG-1431, "STS Westinghouse Plants," Revision 2, issued in 2001 (ADAMS Accession No. ML011840223). Accordingly, the AP1000 STS are also based on applicable NRC-approved generic changes to NUREG-1431 since Revision 2 (with exceptions), which have been incorporated in the improved STS Revision 5, issued in 2021 (ADAMS Accession Nos. ML21259A155 and ML21259A159). In addition, the AP1000 utilities and NRC staff have made editorial changes to increase the clarity and usability of the AP1000 STS NUREG. Most of the changes reflected in this first revision of the AP1000 STS NUREG, are the results of the many plant-specific TS amendments granted since Amendment 13 to the VEGP Unit 3 COL and of experience gained during the construction of VEGP Unit 3. Changes to the AP1000 STS Bases reflect changes in Revisions 1 through 70 of the Bases for the plant-specific TS for VEGP Unit 3. 

The improved STS were developed based on the selection criteria for limiting conditions for operation in the Final Commission Policy Statement on Technical Specifications Improvements for Nuclear Power Reactors, dated July 22, 1993 (58 FR 39132), which were subsequently codified by changes to 10 CFR 50.36, "Technical specifications" (60 FR 36953). Licensees of pre-AP1000 Westinghouse plants are encouraged to upgrade their plant-specific TS consistent with those criteria and conforming, to the extent practical, to Revision 5 of the  improved STS. Likewise, licensees of AP1000 plants are encouraged to update their plant-specific TS to conform, to the extent practical, to Revision 1 of the AP1000 STS. Licensees adapting portions of the STS to existing plant-specific TS should adapt all related requirements, as applicable, to achieve a high degree of standardization and consistency.