Document: NRC Regulatory Guide
Document ID: 6828ed7d-219b-4105-acf2-37d8a69c3f72
Document Type: regulatory_guide
Title: Use of ARCON Methodology For Calculation Of Accident-Related Offsite Atmospheric Dispersion Factors + HISTORY - HISTORY 08/2021 – DG-4030 , Proposed Revision 0
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML2116/ML21165A005.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-4.28
CFR Part: 
CFR Title: 

Content:
information,” for standard design approval applications, requires a safety assessment of the site, including consideration of major SSCs of the facility and site meteorology, to evaluate the offsite radiological consequences at the EAB and LPZ. o 10 CFR 52.157, “Contents of applications; technical information in final safety analysis report,” for manufacturing license applications, requires a safety assessment of the site, including consideration of major SSCs of the facility and site meteorology, to evaluate the offsite radiological consequences at the EAB and LPZ. • 10 CFR Part 100 establishes approval requirements for proposed sites for stationary power and testing reactors subject to 10 CFR Part 50 and 10 CFR Part 52. o 10 CFR 100.21, “Non-seismic siting criteria,” includes siting requirements related to the atmospheric dispersion characteristics used in the evaluation of EAB and LPZ radiological dose consequences for postulated accidents. DG-4030, Page 3 Related Guidance • NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition” (Ref. 5), presents criteria that could affect the safe design and siting of the plant. o Section 2.3.3, “Onsite Meteorological Measurements Program,” discusses the meteorological data to be used for atmospheric dispersion assessments. o Section 2.3.4, “Short-Term Atmospheric Dispersion Estimates for Accident Releases,” discusses the characteristics that could affect the safe design and siting of a plant. • RG 1.23, “Meteorological Monitoring Programs for Nuclear Power Plants” (Ref. 6), presents criteria for an acceptable onsite meteorological monitoring program and the resulting meteorological database that may be used as input to the atmospheric dispersion estimates. • RG 1.194 is an acceptable method to meet the regulations concerning the determination of atmospheric relative concentration (χ/Q) values in support of design-basis control room