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Federal Register / Vol. 86, No. 20 / Tuesday, February 2, 2021 / Proposed Rules
7825

TABLE IACCEPTABLE CODE CASESContinued Code Case No.

Published with supplement
Title
N874

7 2017 Edition

N877

2 2017 Edition

N882

6 2017 Edition

N885

0 2019 Edition

N892

0 2019 Edition

Temporary Acceptance of Leakage Through Brazed Joints of Class 3 Copper, CopperNickel, and Nickel-Copper Moderate Energy Piping, Section XI, Division 1.
Alternative Characterization Rules for Multiple Subsurface Radially Oriented Planar Flaws, Section XI, Division 1.
Alternative Requirements for Attaching Nonstructural Electrical Connections to Class 2 and 3 Components, Section XI, Division 1.
Alternative Requirements for Table IWB25001, Examination Category BN1, Interior of Reactor Vessel, Category BN2, Welded Core Support Structures and Interior Attachments to Reactor Vessels, Category BN3, Removable Core Support Structures, Section XI, Division 1.
Alternative Requirement for Form OAR1, Owners Activity Report, Completion Time, Section XI, Division 1.
Operation and Maintenance Code addressed in DG1368, Table 1

OMN13, Revision 3

2020 Edition

OMN15, Revision 3

2020 Edition

OMN17, Revision 1
OMN22
OMN23
OMN24

2020
2020
2020
2020

OMN25
OMN26

2020 Edition
2020 Edition

OMN27

2020 Edition

Edition Edition Edition Edition

B. Code Cases Approved for Use With Conditions The NRC has determined that certain Code Cases, as issued by the ASME, are generally acceptable for use, but that the alternative requirements specified in those Code Cases must be supplemented in order to provide an acceptable level of quality and safety. Accordingly, the NRC proposes to impose conditions on the use of these Code Cases to modify,
Performance-Based Requirements for Extending Snubber Inservice Visual Examination Interval at LWR Power Plants.
Performance-Based Requirements for Extending the Snubber Operational Readiness Testing Interval at LWR Power Plants.
Alternative Requirements for Testing ASME Class 1 Pressure Relief/Safety Valves.
Smooth Running Pumps.
Alternative Requirements for Testing Pressure Isolation Valves.
Alternative Requirements for Testing ASME Class 2 and 3 Pressure Relief Valves For Relief Valves in a Group of One.
Alternative Requirements for Testing Appendix I Pressure Relief Valves.
Alternate Risk-Informed and Margin Based Rules for Inservice Testing of Motor Operated Valves.
Alternative Requirements for Testing Category A Valves Non-PIV/CIV.

limit or clarify their requirements. The conditions would specify, for each applicable Code Case, the additional activities that must be performed, the limits on the activities specified in the Code Case, and/or the supplemental information needed to provide clarity.
These ASME Code Cases, listed in Table II, are included in Table 2 of DG1366
RG 1.84, DG1367 RG 1.147, and DG1368 RG 1.192. This section provides the NRCs evaluation of the
Code Cases and the reasons for the NRCs conditions. Notations indicate the conditions duplicated from previous versions of the RG.
The NRC requests public comment on these Code Cases and the proposed conditions. It should also be noted that this section only addresses those Code Cases for which the NRC proposes to impose conditions, which are listed in the RG for the first time.

TABLE IICONDITIONALLY ACCEPTABLE CODE CASES
Published with supplement
Code Case No.

Title
jbell on DSKJLSW7X2PROD with PROPOSALS

Boiler and Pressure Vessel Code Section III
addressed in DG1366, Table 2
N7120

6 2015 Edition

N1553
N7554
N779
N852
N883

5
1 9
0 5

N886

6 2017 Edition

2015
2017
2007
2015
2017

Edition Edition Edition Edition Edition

Additional Materials for Subsection NF, Class 1, 2, 3, and MC Supports Fabricated by Welding, Section III, Division 1.
Fiberglass Reinforced Thermosetting Resin Pipe, Section III, Division 1.
Use of Polyethylene PE Class 3 Plastic Pipe, Section III, Division 1.
Alternative Rules for Simplified Elastic-Plastic Analysis Class 1, Section III, Division 1.
Application of the ASME NPT Stamp, Section III, Divisions 1, 2, 3, and 5.
Construction of Items Prior to the Establishment of a Section III, Division 1 Owner, Section III, Division 1.
Use of Polyethylene Pipe for Class 3, Section III, Division 1.

Boiler and Pressure Vessel Code Section XI
addressed in DG1367, Table 2
N5135

6 2017 Edition

N5165

6 2015 Edition

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16:27 Feb 01, 2021

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Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3
Piping and Gate Valves, Section XI, Division 1.
Underwater Welding, Section XI, Division 1.

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