Document: NRC Regulatory Guide
Document ID: a1541707-8144-409c-8842-4ea7d4b8ef4e
Document Type: regulatory_guide
Title: 10/2019 (Rev. 19)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1912/ML19128A244.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.147
CFR Part: 
CFR Title: 

Content:
4 Optimized Structural Dissimilar Metal Weld Overlay for Mitigation of PWR Class 1 Items, Section XI, Division 1 N-754-1 Published on 2/28/13 N-762 Temper Bead Procedure Qualification Requirements for Repair/Replacement Activities without Postweld Heat Treatment, Section XI, Division 1 N-762-1 Published on 10/21/13 N-766 Nickel Alloy Reactor Coolant Inlay and Onlay for Mitigation of PWR Full Penetration Circumferential Nickel Alloy Dissimilar Metal Welds in Class 1 Items, Section XI, Division 1 N-766-1 Published on 4/7/13 N-769 N-769-1 Roll Expansion of Class 1 In-Core Housing Bottom Head Penetrations in BWRs, Section XI, Division 1 N-769-1 Published on 9/17/10 N-769-2 Published on 7/16/12 N-786 Alternative Requirements for Sleeve Reinforcement of Class 2 and 3 Moderate-Energy Carbon Steel Piping, Section XI, Division 1 N-786-1 Published on 4/24/11 N-789 Alternative Requirements for Pad Reinforcement of Class 2 and 3 Moderate-Energy Carbon Steel Piping, Section XI, Division 1 Areas that contain pressure pads shall be visually observed at least once per month to monitor for evidence of leakage. If the areas that contain pressure pads are not accessible for direct observation, monitoring will be accomplished by the visual assessment of the surrounding areas or the ground surface areas above pressure pads on buried piping or by the monitoring of leakage collection systems, if available. N-789-1 Published on 11/13/13 N-789-1 Alternative Requirements for Pad Reinforcement of Class 2 and 3 Moderate Energy Carbon Steel Piping for Raw Water Service N-789-2 Published on 6/23/15 N-823 Visual Examination, Section XI, Division 1 N-823-1 Published on 1/23/14 RG 1.147, Rev. 19, Page 40 D. IMPLEMENTATION The purpose of this section is to provide information to applicants and licensees regarding the NRC staff’s plans for using this regulatory guide. The requirements addressing implementation of Section XI, Code Cases are contained in 10 CFR 50.55a(b)(5). No backfitting is