Document: NUREG-0800
Document ID: 3a8a905e-fe11-43fd-ba6c-917507daa823
Document Type: srp
Title: COMPLIANCE WITH THE CODES AND STANDARDS RULE, 10 CFR §  50.55a
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070441.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.1.1
CFR Part: 
CFR Title: 

Content:
accordance with 10 Regulatory Guide 1.26 and constructed as Class 2 components in accordance with the Code. The Codes and Standards Rule also requires that pressure-retaining components of other fluid systems important to safety be designated as Quality Group BClass 2, or Quality Group C 11 Class 3, and Class MC components and constructed in accordance with the rules of themeet 4 Code requirements for Class 2 or Class 3 components, respectively. 4 12 To meet these requirements, components of other fluid systems important to safety may be classified as Quality Group B or CB, C, or D in accordance with the guidance provided in 13 Regulatory Guide 1.26, which is an acceptable method for determining the appropriate Code Class for most non-RCPB pressure-retaining components. This review of Quality Group B and 14 Quality Group CA review of Quality Group B, C, or D components of other fluid systems 15 important to safety is performed under SRPStandard Review Plan (SRP) Section 3.2.2. 16 For construction permit (CP), standard design certification, and operating license (OL) 17 applications, the MEBEMEB will determine the acceptability of the information presented in 18 the SAR to assureensure that the applicant is in compliance with the rules of Section10 CFR 19 20 50.55a. In the event there are cases where conformance with the Codes and Standards Rule would result in hardships or unusual difficulties without a compensating increase in the level of safety and quality, the applicant must provide a complete description of the circumstances and the basis for proposed alternate requirements. The applicant must describe how an equivalent and acceptable level of safety and quality will be provided by the proposed alternate requirements. The SAR should identify differences between the specific portions of the Code and Code Addenda to which each component has been constructed and that which is required for conformance with Section10 CFR 50.55a. 21 5.2.1.1-3 DRAFT Rev. 3 - April