Document: NUREG-0800
Document ID: 1c401e6c-8c2d-47df-b05f-2978939cbd15
Document Type: srp
Title: CONTROL ROOM HABITABILITY SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550069.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.4
CFR Part: 
CFR Title: 

Content:
based on the staff’s review and evaluation that the control room habitability systems meet the regulatory positions of Regulatory Guide 1.52, Revision 3, June 2001, "Design, Inspection, and Testing Criteria for Air Filtration and Adsorption Units of Post-Accident Engineered-Safety-Feature Atmosphere Cleanup Systems in Light-Water-Cooled Nuclear Power Plants," Regulatory Guide 1.78, Revision1, December 2001, “Evaluating the Habitability of a Nuclear Power Plant Control Room During a Postulated Hazardous Chemical Release," Regulatory Guide 1.195, May 2003, “Methods and Assumptions for Evaluating Radiological Consequences of Design Basis Accidents at Light-Water Nuclear Power Reactors” or Regulatory Guide 1.183, July 2000, “Alternative Radiological Source Terms for Evaluating Design Basis Accidents at Nuclear Power Reactors,” Regulatory Guide 1.196, January 2007, “Control Room Habitability at Light-Water Nuclear Power Reactors,” and Regulatory Guide 1.197, May 2003, “Demonstrating Control Room Envelope Integrity at Nuclear Power Reactors.” If special protection provisions for toxic gases are not necessary, the following statement or its equivalent is made: The habitability of the control room was evaluated using the procedures described in Regulatory Guide 1.78. As indicated in Sections 2.2.1 and 2.2.2, no offsite storage or transport of chemicals is close enough to the plant to be considered a hazard. There are no onsite chemicals that can be considered hazardous under Regulatory Guide 1.78. A sodium hypochlorite biocide system will be used, thus eliminating an onsite chlorine hazard. Therefore, special provisions for protection against toxic gases will not be necessary. In accordance with plant emergency plans and procedures, self-contained breathing apparatus is provided for assurance of control room habitability in the event of occurrences such as smoke hazards. If special protection provisions are necessary for toxic gases, compliance or