Clarification on Endorsement of Nuclear Energy Institute Guidance in Designing Digital Upgrades in Instrumentation and Control Systems

Streszczenie

The U.S. Nuclear Regulatory Commission (NRC) is seeking public comment on the draft Regulatory Issue Summary (RIS) 2002-22, Supplement 1, "Clarification on Endorsement of Nuclear Energy Institute Guidance in Designing Digital Upgrades in Instrumentation and Control Systems." This RIS Supplement clarifies the guidance in RIS 2002-22, which remains in effect. The NRC continues to endorse Nuclear Energy Institute 01-01 (NEI-01-01) as stated in RIS 2002-22, as clarified by the RIS Supplement.