Document: NRC Regulatory Guide
Document ID: e75bce6f-d094-4709-bb7c-545c8bf5ad94
Document Type: regulatory_guide
Title: Atmospheric Relative Concentrations for Control Room Radiological Habitability Assessments at Nuclear Power Plants (Rev. 0)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1526/ML15268A488.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.194
CFR Part: 
CFR Title: 

Content:
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 September 23, 2015 MEMORANDUM TO: Brian E. Thomas, Director Division of Engineering Office of Nuclear Regulatory Research FROM: Scott C. Flanders, Director /RA/ Division of Site Safety and Environmental Analysis Office of New reactors SUBJECT: RESULTS OF PERIODIC REVIEW OF REGULATORY GUIDE (RG) 1.194 This memorandum documents the US Nuclear Regulatory Commission's (NRC) periodic review of regulatory guide (RG) 1.194, "Atmospheric Relative Concentrations for Control Room Radiological Habitability Assessments at Nuclear Power Plants." The RG provides guidance on determining atmospheric relative concentration values in support of design basis control room radiological habitability assessments at nuclear power plants, published in June, 2003. As discussed in Management Directive 6.6, "Regulatory Guides," the NRC staff reviews RGs approximately every 5 years to ensure that the RGs continue to provide useful guidance. Documentation of the NRC staff review is enclosed. Based on the results of the periodic review, the staff concludes that no changes to RG 1.194 Revision 0 are warranted at this time. However, the staff identified some technical or regulatory issues in the review that could warrant addressing in a future revision Enclosure: As Stated CONTACT: Ken Erwin, NRO/DSEA (301)-415-7559 September 23, 2015 MEMORANDUM TO: Brian E. Thomas, Director Division of Engineering Office of Nuclear Regulatory Research FROM: Scott C. Flanders, Director Division of Site Safety and Environmental Analysis Office of New reactors SUBJECT: RESULTS OF PERIODIC REVIEW OF REGULATORY GUIDE (RG) 1.194 This memorandum documents the US Nuclear Regulatory Commission's (NRC) periodic review of regulatory guide (RG) 1.194, "Atmospheric Relative Concentrations for Control Room Radiological Habitability Assessments at Nuclear Power Plants." The RG provides guidance on determining atmospheric relative concentration values in