Document: NRC Regulatory Guide
Document ID: 70415715-297f-4d60-841c-514b0372a131
Document Type: regulatory_guide
Title: 02/2017 (Rev. 5)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1608/ML16082A501.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.26
CFR Part: 
CFR Title: 

Content:
r Construction of Pressure Vessels” (Ref. 14) Piping Class 2 Class 3 ASME B31.1 (Ref. 15) Pumps Class 2 Class 3 Manufacturers’ standards Valves Class 2 Class 3 ASME B31.1 Atmospheric Storage Tanks Class 2 Class 3 API-650 (Ref. 16), AWWA D- 100 (Ref. 17), or ASME B96.1 (Ref. 18) 0-15 psig Storage Tanks Class 2 Class 3 API-620 (Ref. 19) 6 See 10 CFR 50.55a for guidance regarding the ASME Code edition and addenda to be applied. In addition, other RGs or Commission regulations cover the specific applicability of code cases, where appropriate. Applicants and licensees proposing the use of code cases not covered by guides or regulations should demonstrate that an acceptable level of quality and safety would be achieved. RG 1.26, Rev. 5, Page 10 D. IMPLEMENTATION The purpose of this section is to provide information on how applicants and licensees7 may use this guide and information regarding the NRC’s plans for using this RG. In addition, it describes how the NRC staff complies with 10 CFR 50.109, “Backfitting” and any applicable finality provisions in 10 CFR Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants” (Ref. 20). Use by Applicants and Licensees Applicants and licensees may voluntarily8 use the guidance in this document to demonstrate compliance with the underlying NRC regulations. Methods or solutions that differ from those described in this RG may be deemed acceptable if they provide sufficient basis and information for the NRC staff to verify that the proposed alternative demonstrates compliance with the appropriate NRC regulations. Current licensees may continue to use guidance the NRC found acceptable for complying with the identified regulations as long as their current licensing basis remains unchanged. Licensees may use the information in this RG for actions which do not require NRC review and approval such as changes to a facility design under 10 CFR 50.59, “Changes, Tests, and Experiments.” Licensees may use the