Document: NUREG-0800
Document ID: 2bca792d-0e88-4e2d-b437-be572ed57a48
Document Type: srp
Title: REVIEW OF TRANSIENT AND ACCIDENT ANALYSIS METHODS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0708/ML070820123.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.0.2
CFR Part: 
CFR Title: 

Content:
certainty, including the mathematical models in the code and user modeling such as nodalization. The major sources of uncertainty must be addressed consistent with the results of the accident sequence identification process. When the code is used in a licensing calculation, the combined code and application uncertainty must be less than the design margin for the safety parameter of interest. The analysis must include a sample uncertainty evaluation for a typical plant application. 15.0.2-6 March 2007 In some cases, bounding values are used for input parameters as described in SRP sections or Regulatory Guides and are used for plant operating conditions such as accident initial conditions, set points, and boundary conditions. 5. Quality Assurance Plan. The code must be maintained under a quality assurance program that meets the requirements of Appendix B to 10 CFR Part 50. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. 1. Acceptance Review. An acceptance review is a preliminary process of assessment of the completeness and apparent acceptability of quality of the documents submitted in order to commit NRC to a detailed review of the application. The reviewers of the code or codes comprising the evaluation model should perform an acceptance review consistent with the guidance provided in NRC Office Instruction No. LIC-101, Revision 1, “Licence Amendment Review Procedures,” dated March 27, 2002. The reviewers should ensure that all areas discussed in the section titled Documentation are addressed in the topical report submitted by a licensee or vendor. The