Document: NRC Regulatory Guide
Document ID: a4944d20-ef6e-480b-a45d-14425bedd2e5
Document Type: regulatory_guide
Title: ASME Code Cases Not Approved for Use (Rev. 8)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22196A065.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.193
CFR Part: 
CFR Title: 

Content:
Class 2 piping. Paragraph C-3112(a)(3) of Code Case N-813 provides the same alternatives for Class 2 piping as that of Paragraph B-3122(a)(3). The staff has the same concerns for Class 2 piping as it does for Class 1 piping. 12/4/20 DG-1408, Page 37 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 as well as how applicants and licensees may use this regulatory guide. This RG does not approve the use of the Code Cases listed herein. No backfitting is intended or approved in connection with the issuance of this guide. Applicants or licensees may submit a plant-specific request to implement one or more of the Code Cases listed in this RG. The request should address the NRC’s concerns about the Code Case(s). DG-1408, Page 38 REFERENCES2 1. Code of Federal Regulations (CFR), “Domestic Licensing of Production and Utilization Facilities,” Part 50, Chapter 1, Title 10, “Energy.” 2. American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section III, “Rules for Construction of Nuclear Power Plant Components,” New York, NY.3 3. ASME Code for the Operation and Maintenance of Nuclear Power Plants, New York, NY.2 4. ASME Boiler and Pressure Vessel Code, Section XI, “Rules for Inservice Inspection of Nuclear Power Plant Components,” New York, NY.2 5. CFR, “Licenses, Certifications, and Approvals for Nuclear Power Plants,” Part 52, Chapter 1, Title 10, “Energy.” 6. U.S. Nuclear Regulatory Commission (NRC), Regulatory Guide (RG) 1.84, “Design, Fabrication, and Materials Code Case Acceptability, ASME Section III,” Washington, DC. 7. NRC, RG 1.147, “Inservice Inspection Code Case Acceptability, ASME Section XI, Division 1,” Washington, DC. 8. NRC, RG 1.192, “Operation and Maintenance Code Case Acceptability, ASME OM Code,” Washington, DC. 9. NRC, RG 1.136, “Design Limits, Loading Combinations, Materials,