Document: NRC Regulatory Guide
Document ID: 74c49394-8dbf-46e7-b62a-b85de93b47d8
Document Type: regulatory_guide
Title: Initial Test Programs for Water-Cooled Nuclear Power Plants + HISTORY - HISTORY 11/2012 – DG-1259 , Proposed Revision 4 11/2006 – DG-1166 , Proposed Revision 3 (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1229/ML12298A071.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.68
CFR Part: 
CFR Title: 

Content:
y guide is a rule as designated in the Congressional Review Act (5 U.S.C. 801-808). However, OMB has not found it to be a major rule as designated in the Congressional Review Act. B. DISCUSSION Reason for Change Regulatory guide 1.68 is being revised to address design qualification tests and add additional preoperational, low-power, and power accession tests for applications for OLs and COLs of light water reactors (LWRs) under 10 CFR Parts 50 and 52. Background The applicant for an OL under 10 CFR Part 50, or a COL under 10 CFR Part 52, is responsible for ensuring that a suitable initial (preoperational and startup) test program will be conducted for the facility. The primary objectives of a suitable program are: 1. provide additional assurance that the facility has been adequately designed; 2. validate, to the extent practical, the analytical models; DG-1259, Page 4 3. verify the correctness or conservatism of assumptions used to predict plant responses to anticipated transients and postulated accidents; 4. provide assurance that construction and installation of equipment in the facility have been accomplished in accordance with design; 5. familiarize the plant’s operating and technical staff with the operation of the facility; and 6. verify by trial use, to the extent practical, that the facility operating procedures and emergency procedures are adequate. The ITP may include system and component tests, monitoring of SSC performance, and inspection and surveillance test activities for plant SSCs. An ITP satisfying these objectives should provide the necessary assurance that the facility can be operated in accordance with design requirements and in a manner that will not endanger the health and safety of the public. Discussion As previously noted, the ITP consists of preoperational and initial startup tests. “Preoperational testing,” as used in this regulatory guide, consists of those tests conducted following completion of construction inspections and tests,