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:
ensed 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 improved by reducing uncertainty as to what is acceptable and by encouraging consistency in the performance of CRH assessments. The benefit to the industry and the NRC will be to the extent this occurs. The availability of this guidance should benefit licensees and applicants in structuring acceptable test programs, performing evaluations of radiological, hazardous chemicals, and smoke hazards, and maintaining CRH. Therefore, this guide would reduce the likelihood for follow-up questions and possible revisions in licensees’ programs. ! A new regulatory guide endorsing industry guidance on the performance of CRH assessments would result in some cost savings to both the NRC and industry. The NRC would incur one-time incremental costs to develop the draft regulatory guide for comment and to finalize the regulatory guide. However, the NRC should also recognize cost savings associated with endorsing existence guidance in lieu of preparing its own guidance. The staff believes that the continuous and on-going cost savings associated with these reviews should offset the one-time development costs. This regulatory guide would provide an acceptable method to the NRC staff that is voluntarily initiated by the licensee. Since the described methods in the regulatory guide and in sections of NEI 99-03 may require more resources than the currently performed assessments, there would be an increase in costs, especially at facilities that have not performed CRH assessments or have no CRH maintenance program or no CRE integrity testing program. ! CRE integrity is fundamental in providing an environment in which control room personnel can take actions to mitigate the consequences of certain postulated accidents, thereby providing for the health and safety of the public. There are