Document: NUREG-0800
Document ID: 96afb1d6-6ce9-41e4-b4ec-1fc7747bc0b2
Document Type: srp
Title: Revision 8 – January 2021
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML2033/ML20339A647.pdf
Revision Date: 2023-05
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
“Guidance on Self-Test and Surveillance Test Provisions,” provides guidance on self-test features. Over the years, the U.S. Nuclear Regulatory Commission (NRC) staff has approved applications that use various design features to address CCF vulnerabilities in DI&C systems. Some of these use multiple design solutions within different parts of a single DI&C system. In reviewing these applications, the staff has evaluated several different solutions that successfully address CCF vulnerabilities. Consequently, the staff recognizes that there may be no single solution that applies to all DI&C systems. 1. Regulatory Basis The regulations listed below may not apply to all applicants. Their applicability depends on the plant-specific licensing basis and any proposed changes to the licensing basis associated with the DI&C system under evaluation: • For NPPs with construction permits (CPs) issued before January 1, 1971, Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(h) requires protection systems to be consistent with the plant-specific licensing basis or to comply with IEEE Std 603-1991, “IEEE Standard Criteria for Safety Systems for Nuclear Power Generating Stations,” and with the IEEE Std 603-1991 correction sheet dated January 30, 1995. • For NPPs with CPs issued between January 1, 1971, and May 13, 1999, 10 CFR 50.55a(h) requires protection systems to comply with IEEE Std 279-1968, “Proposed IEEE Criteria for Nuclear Power Plant Protection Systems”; IEEE Std 279-1971, “Criteria for Protection Systems for Nuclear Power Generating Stations”; or IEEE Std 603-1991 and the correction sheet dated January 30, 1995. • For applications for CPs, operating licenses (OLs), combined licenses (COLs), standard design approvals (SDAs), or design certifications (DCs) filed after May 13, 1999, 10 CFR 50.55a(h) requires compliance with IEEE Std 603-1991 and the correction sheet dated January 30, 1995. BTP 7-19-5 Revision 8 – January 2021 • General