Document: NUREG-0800
Document ID: cd6f87fe-98e4-4726-8a49-7793f2f2caf1
Document Type: srp
Title: REGIONAL CLIMATOLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070225.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.1
CFR Part: 
CFR Title: 

Content:
or. e. Probable maximum annual frequency of occurrence and time duration of freezing rain (ice storms) and, where applicable, dust (sand) storms. f. Maximum rainfall rate.3 g. Other meteorological and air quality conditions used for design and operating basis considerations. For a design certification review, the relevant information listed above should be in the site parameter envelope that must be met by the plant design.4 Review Interfaces5 The reviewer provides findings on meteorological parameters to the Civil Engineering and Geosciences Branch (ECGB) and other branches, as necessary, to review whether structures, systems, and components important to safety are adequately designed. The ECGB, under SRP 6 Section 2.3.6 (proposed), reviews the adequacy of the site parameter envelope specified in standard design certification applications.7 II. ACCEPTANCE CRITERIA The information regarding the regional meteorological conditions and phenomena whichthat affect the safe design and siting of the plant may be expressed as actual measured values for CP, OL, COL, or early site permit licensing actions or as part of the site parameter envelope for a standard design certification. The information is acceptable if it meets the requirements of the 8 following regulations: 1. 10 CFR Part 50, Appendix A, General Design Criterion 2 (GDC 2), "Design Bases for Protection Against Natural Phenomena," with respect to information on severe regional weather phenomena that have historically been reported for the region and that are reflected in the design bases for structures, systems, and components important to safety; 2 10 CFR Part 50, Appendix A, General Design Criterion 4 (GDC 4), "Environmental Missile Design Bases" "Environmental and Dynamic Effects Design Bases," with 9 respect to information on tornadoes that could generate missiles; and 2.3.1-3 DRAFT Rev. 3 - April 1996 3. 10 CFR Part 100, § 100.10(c), with respect to the consideration that has been given to 10 the regional