Document: NRC Regulatory Guide
Document ID: 8291b9eb-e4a7-4806-8b5b-1deca2ff1fe2
Document Type: regulatory_guide
Title: Control Room Habitability at Light-Water Nuclear Power Reactors
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0207/ML020790125.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.196
CFR Part: 
CFR Title: 

Content:
sensus Standard Although there are national consensus standards that address measurements of air exchange in buildings and flow in ventilation system components, the staff was not able to identify any national consensus standards that provide higher-level guidance on CRH for a nuclear power plant. As such, this alternative is not viable. 4. Alternative 4 – Issue New Regulatory Guide This alternative would have the staff prepare a new regulatory guide to provide guidance on methods acceptable to the NRC staff for CRH, including development of a testing program, attributes of an acceptable test, and acceptable test methods. This alternative would be supportive of the four reactor safety performance goals. Issuing a new regulatory guide would: ! Maintain public safety by providing needed guidance on ensuring that a plant’s CRE is consistent with the plant’s licensing basis. ! Improve efficiency and effectiveness by minimizing reiterative discussions between staff and licensees to establish acceptable approaches by providing adequate formal guidance. However, this alternative would not be as efficient as Alternative 2 in that acceptable work already performed by the industry would not be used. ! Minimize unnecessary regulatory burden by providing guidance on implementing a CRE integrity testing program that provides a basis for replacing the non- conclusive surveillance test currently used. ! Maintain public confidence by providing guidance that supports improved confidence in the ability of the control room operators to take necessary actions during an emergency condition. V. EVALUATION OF VALUES AND IMPACTS Since the proposed action is a new regulatory guide that endorses sections of NEI 99-03, compliance with the regulatory positions is voluntary for currently licensed RA-5 operating reactors. As with all regulatory guides, an applicant may propose alternative approaches to demonstrating compliance with the NRC’s regulations. ! Regulatory efficiency would be