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Federal Register / Vol. 86, No. 20 / Tuesday, February 2, 2021 / Proposed Rules
As such, the proposed NRC condition requires the user to comply with the provisions of Section III, NB2300 and Section III, G2110b to demonstrate the applicability of the ASME KIc curve to SA533 Type B, Class 2 material.
These provisions require the user to generate the necessary toughness data to demonstrate that the ASME KIc curve is a conservative representation of the actual material toughness.

The proposed conditions on Code Case OMN9 2020 Edition are identical to the conditions on OMN9
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN9 was reaffirmed by the ASME in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.

3. ASME Operation and Maintenance Code Cases DG1368/RG 1.192

Type: Reaffirmed.
Title: Alternative Requirements for Inservice Testing Using Risk Insights for Pneumatically and Hydraulically Operated Valve Assemblies in LightWater Reactor Power Plants OM-Code 1998, Subsection ISTC.
The proposed conditions on Code Case OMN12 2020 Edition are identical to the conditions on OMN12
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN12 was reaffirmed by the ASME
in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.

Code Case OMN1, Revision 2 2020
Edition Type: Reaffirmed.
Title: Alternative Rules for Preservice and Inservice Testing of Active Electric Motor-Operated Valve Assemblies in Light-Water Reactor Power Plants.
The proposed conditions on Code Case OMN1, Revision 2 2020 Edition are identical to the conditions on OMN
1, Revision 2 2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN1, Revision 2 was reaffirmed by the ASME in the 2020
Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG 1.192.

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Code Case OMN3 2020 Edition Type: Reaffirmed.
Title: Requirements for Safety Significance Categorization of Components Using Risk Insights for Inservice Testing of LWR Power Plants.
The proposed conditions on Code Case OMN3 2020 Edition are identical to the conditions on OMN3
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN3 was reaffirmed by the ASME in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.
Code Case OMN4 2020 Edition Type: Reaffirmed.
Title: Requirements for Risk Insights for Inservice Testing of Check Valves at LWR Power Plants.
The proposed conditions on Code Case OMN4 2020 Edition are identical to the conditions on OMN4
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN4 was reaffirmed by the ASME in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.
Code Case OMN9 2020 Edition Type: Reaffirmed.
Title: Use of a Pump Curve for Testing.

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Code Case OMN12 2020 Edition
Code Case OMN18 2020 Edition Type: Reaffirmed.
Title: Alternate Testing Requirements for Pumps Tested Quarterly Within 20% of Design Flow.
The proposed conditions on Code Case OMN18 2020 Edition are identical to the conditions on OMN18
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN18 was reaffirmed by the ASME
in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.
Code Case OMN19 2020 Edition Type: Reaffirmed.
Title: Alternative Upper Limit for the Comprehensive Pump Test.
The proposed conditions on Code Case OMN19 2020 Edition are identical to the conditions on OMN19
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The OMN19 was reaffirmed by the ASME
in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.
Code Case OMN20 2020 Edition Type: Reaffirmed.
Title: Inservice Test Frequency.
The proposed conditions on Code Case OMN20 2020 Edition are identical to the conditions on OMN20
2017 Edition that were approved by the NRC in Revision 3 of RG 1.192. The
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OMN20 was reaffirmed by the ASME
in the 2020 Edition with no change to the Code Case. Therefore, the conditions would be retained in Revision 4 of RG
1.192.
C. ASME Code Cases Not Approved for Use DG1369/RG 1.193
The ASME Code Cases that are currently issued by the ASME but not approved for generic use by the NRC are listed in RG 1.193, ASME Code Cases not Approved for Use. In addition to the ASME Code Cases that the NRC has found to be technically or programmatically unacceptable, RG
1.193 includes Code Cases on reactor designs for high-temperature gas-cooled reactors and liquid metal reactors, reactor designs not currently licensed by the NRC, and certain requirements in Section III, Division 2, for submerged spent fuel waste casks, that are not endorsed by the NRC. Regulatory Guide 1.193 complements RGs 1.84, 1.147, and 1.192. It should be noted that the NRC
is not proposing to adopt any of the Code Cases listed in RG 1.193.
IV. Section-by-Section Analysis The following paragraphs in 50.55a would be revised as follows:
Paragraph a3 Introductory Text This proposed rule would add a reference to NUREG2228 that is acceptable as specified in the conditions when implementing Code Cases listed in certain NRC regulatory guides.
Paragraph a3i This proposed rule would revise the reference to NRC Regulatory Guide 1.84, Revision 38, by removing Revision 38 and adding in its place Revision 39 and change the month and year for the documents revision date.
Paragraph a3ii This proposed rule would revise the reference to NRC Regulatory Guide 1.147, Revision 19 by removing Revision 19 and adding in its place Revision 20 and change the month and year for the documents revision date.
Paragraph a3iii This proposed rule would revise the reference to NRC Regulatory Guide 1.192, Revision 3 by removing Revision 3 and adding in its place Revision 4 and change the month and year for the documents revision date.
Paragraph a3iv This proposed rule would add new paragraph a3iv to reference
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