Document: NUREG-0800
Document ID: 25864ed2-efde-4c4d-a9b6-0ea7a7f662d9
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/ML0523/ML052340592.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.1.1
CFR Part: 
CFR Title: 

Content:
n the SAR, to assure that the applicant is in compliance with the rules of Section 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 com- plete 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 require- ments. 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 Section 50.55a. The MTEB verifies, upon request of MEB, the compatibility of the materials of construction with service conditions and, as required, will provide assistance in establishing acceptability in the event an applicant invokes the "hardship" clause, and does not conform in all respects with Section 50.55a. II. ACCEPTANCE CRITERIA Acceptance criteria is based on meeting the relevant requirements of the following regulations: 1. 10 CFR Part 50, Appendix A, General Design Criterion 1, as it relates to the requirement that structures, systems, and components important to safety shall be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be performed. 2. 10 CFR § 50.55a as it relates to establishing minimum quality standards for the design, fabrication, erection, construction, testing, and inspec- tion of components within the reactor coolant pressure boundary and other fluid systems important to safety of boiling and pressurized water reactor nuclear power plants by requiring conformance with appropriate editions of specified published industry codes and standards. To meet the requirements of General Design Criterion 1 and 10 CFR § 50.55a, Regulatory