Document: NRC Regulatory Guide
Document ID: c55ba6c5-aa2d-4ad6-aba2-2001e16524ab
Document Type: regulatory_guide
Title: Ultrasonic Testing of Reactor Vessel Welds During Preservice and Inservice Examinations (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1221/ML12216A015.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.150
CFR Part: 
CFR Title: 

Content:
the safety functions to be performed. Where generally recognized codes and standards are used, these codes and standards must be evaluated to determine their adequacy and sufficiency and must be sup- plemented or modified as necessary to ensure a quality pro- duct in keeping with the required safety function. Criterion 1 further requires that a quality assurance program be imple- mented in order to provide adequate assurance that these components will satisfactorily perform their safety functions and that appropriate records of the testing of components important to safety be maintained by or under the control of the nuclear power unit licensee throughout the life of the unit. Section 50.55a, "Codes and Standards," of 10 CFR Part 50 requires, in part, that structures, systems, and components be designed, fabricated, erected, constructed, tested, and inspected to quality standards commensurate with the importance of the safety function to be performed. Section 50.55a further requires that American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME B&PV Code) Class 1 components meet the require- ments set forth in Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components," of the ASME Code. Criterion XII, "Control of Measuring and Test Equipment," of Appendix B, "Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants," to 10 CFR Part 50 requires, in part, that measures be established to ensure that instruments used in activities affecting quality are properly controlled, calibrated, and adjusted at specified periods to maintain accuracy within necessary limits. Criterion XVII, "Quality Assurance Records," of Appen- dix B requires, in part, that sufficient records be maintained to furnish evidence of activities affecting quality. Consistent with applicable regulatory requirements, the applicant is required to establish such requirements concerning record retention as duration, location, and assigned