Document: NUREG-0800
Document ID: b07c8dd1-23f6-41f1-a3ba-aa378f9ea59a
Document Type: srp
Title: RISK-INFORMED INSERVICE INSPECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0325/ML032510135.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.8
CFR Part: 
CFR Title: 

Content:
is service may be obtained by writing NTIS, 5285 Port Royal Road, Springfield, VA 22161; telephone (703)487-4650; online <http://www.ntis.gov/ordernow>. Copies of active and draft guides are available for inspection or copying for a fee from the NRC Public Document Room at 11555 Rockville Pike, Rockville, MD; the PDR’s mailing address is USNRC PDR, Washington, DC 20555; telephone (301)4154737 or (800)397-4209; fax (301)415-3548; email <pdr@nrc.gov>. Electronic copies of many regulatory guides are available on NRC’s web site, <WWW.NRC.GOV>, 2 Electronic copies are available on the NRC web site at <WWW.NRC.GOV> in the Document Collections under Generic Communications. Copies are available for inspection or copying for a fee from the NRC Public Document Room at 11555 Rockville Pike (first floor), Rockville, MD; the PDR’s mailing address is USNRC PDR, Washington, DC 20555; telephone (301)415-4737 or 1-(800)397-4209; fax (301)415-3548; e-mail <PDR@NRC.GOV>. 3.9.8-20 in depth and quality are not degraded in that the methodology provides reasonable confidence that any reduction in existing inspections will not lead to degraded piping performance when compared to existing performance levels. Inspections are focused on locations with active degradation mechanisms as well as selected locations that monitor the performance of system piping. The staff’s review of the licensee’s proposed RI-ISI program concludes that the program is an acceptable alternative to the current ISI program for Class 1 and Class 2 piping welds, which is based on ASME B&PVC Section XI requirements for Class 1 and Class 2 welds. Therefore, the licensee’s request for relief is authorized pursuant to 10 CFR 50.55a(a)(3)(i) on the basis that the request provides an acceptable level of quality and safety. This safety evaluation authorizes application of the proposed RI-ISI program during the second ten- year ISI interval for licensee’s Unit 1 and Unit 2. VI IMPLEMENTATION The following is