Document: NRC Regulatory Guide
Document ID: 6b0b3fb5-ff2d-4827-ba5b-d3630cb3303e
Document Type: regulatory_guide
Title: Calculation of Releases of Radioactive Materials in Gaseous and Liquid Effluents from Light-Water-Cooled Power Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2106/ML21069A237.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.112
CFR Part: 
CFR Title: 

Content:
MEMORANDUM TO: Louise Lund, Director Division of Engineering Office of Nuclear Regulatory Research FROM: Michael X. Franovich, Director Division of Risk Assessment Office of Nuclear Reactor Regulation SUBJECT: RESULTS OF PERIODIC REVIEW OF REGULATORY GUIDE 1.112 This memorandum documents the U.S. Nuclear Regulatory Commission (NRC) staff’s periodic review of Regulatory Guide (RG) 1.112, Revision 1, “Calculation of Releases of Radioactive Materials in Gaseous and Liquid Effluents from Light-Water-Cooled Nuclear Power Reactors.” A review of the guide is enclosed with this memorandum. This RG, issued in 2007, provides guidance for calculating annual average expected releases of radioactive material in gaseous and liquid effluents (i.e., normal source terms) from large light- water-cooled nuclear power reactors (LWRs). As discussed in Management Directive 6.6, “Regulatory Guides,” the staff reviews RGs periodically to ensure that the RGs continue to provide useful guidance. Based on the results of the periodic review, the staff concludes that no changes to RG 1.112, Revision 1 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. A revision to the RG could benefit new reactor applications. With few light water reactor applicants expected in the coming years and significant staff resources necessary to revise the RG, the staff does not believe that a RG update is justified at this time. The staff will evaluate the need to revise the RG during the next periodic review. CONTACT: Zachary Gran, NRR/DRA 301-415-5520 Enclosure: As stated March 16, 2021 Bowman, Gregory signing on beh of Franovich, Michael on 03/16/21 SUBJECT: RESULTS OF PERIODIC REVIEW OF REGULATORY GUIDE 1.112 DATED: DISTRIBUTION: Z. Gran, NRR K. Hsueh, NRR M. Franovich, NRR H. Karagiannis, RES ADAMS Accession No: ML21069A237 NRR-106 OFFICE NRR/DRA/ARCB NRR/DRA/ARCB: BC NRR/DRA: D NAME ZGran