Document: NRC Regulatory Guide
Document ID: 3b4c5897-7060-42e3-83a9-cf0790b7dc60
Document Type: regulatory_guide
Title: Acceptability of ASME Code, Section XI, Division 2, Requirements for RIM Programs for NPPs, for Non-LWRs
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2112/ML21120A185.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.246
CFR Part: 
CFR Title: 

Content:
ws in Category D, for full penetration welds of nozzles in vessels refers to figures IWC-2500-1 and IWC-2500-2. These figures relate to vessel welds, not nozzle welds in vessels. Figures IWB-2500-7(a) through IWB-2500-7(d) or IWC-2500-3 and Figure IWC-2500-4 should be referred to in paragraphs VII-1.4.2.3 and VII-3.4.2.3 rather than figures IWC- 2500-1 or IWC-2500-2. IWC-2500-3 and IWC-2500-4 are for nozzle welds in vessels. Paragraphs A-2.4 and A-3.4.1 refer to Article A-6, “Records and Report,” for probability of failure calculations and structural evaluations. Article A-5, “Procedure for Structural Reliability Evaluation for Passive Components,” is the appropriate article to reference rather than Article A-6. Paragraph A-3.3 refers to Article A-7, “References.” Article A-6 is the appropriate article to reference when discussing documentation requirements. Consideration of International Standards The International Atomic Energy Agency (IAEA) works with member states and other partners to promote the safe, secure, and peaceful use of nuclear technologies. The IAEA develops Safety Requirements and Safety Guides for protecting people and the environment from harmful effects of ionizing radiation. This system of safety fundamentals, safety requirements, safety guides, and other relevant reports, reflects an international perspective on what constitutes a high level of safety. To inform its development of this RG, the NRC has considered IAEA Safety Requirements and Safety Guides pursuant to the Commission’s International Policy Statement (Ref. 18) and Management Directive and Handbook 6.6, “Regulatory Guides” (Ref. 19). The following IAEA Safety Guide incorporates similar design and preoperational testing guidelines and is consistent with the basic safety principles considered in developing this RG: • IAEA Safety Guide NS-G-2.6, “Maintenance, Surveillance and In-service Inspection in Nuclear Power Plants,” issued 2002 (Ref. 20). DG-1383, Page 13