Document: NRC Regulatory Guide
Document ID: acab976c-e936-49be-8c59-865767973599
Document Type: regulatory_guide
Title: Guidance for a Technology-Inclusive Content of Application Methodology to Inform the Licensing Basis and Content of Applications for Licenses, Certifications, and Approvals for Non-Light-Water Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2319/ML23194A194.pdf
Revision Date: 2023-09
Chapter: 
Section ID: RG-1.253
CFR Part: 
CFR Title: 

Content:
ity during LBEs. This chapter should include analysis methodologies, assumptions, bases, and justifications associated with transport of radioactive material from its point of origin to the accessible environment. For an LMP-based safety analysis, the application should include the use of a mechanistic source term, consistent with the advanced non-LWR PRA standard definition (see Appendix A to NEI 21-07, Revision 1). Mechanistic source term information that is common to some or all of the events considered for the plant may be given in Chapter 2 of a SAR following NEI 21-07, Revision 1, rather than repeated for each event. This information may include references to fuel qualification and performance topical reports and the associated NRC safety evaluations, as discussed in the supplementary information under Chapter 5. C.3 Staff Position: Section C.2 of NEI 21-07, Revision 1, describes an acceptable method for developing baseline information related to the PRA (i.e., an overview of the PRA), source term analysis, DBA analytical methods, and other methodologies and analyses pertinent to the LMP-based safety analysis. Section C.2 of NEI 21-07, Revision 1 provides acceptable guidance on the discussion of the software and analytical tools used to perform the event sequence modeling and quantification, determine the mechanistic source terms, and perform radiological consequence evaluations for the LBEs and DBAs listed in Section C.3 of NEI 21-07, Revision 1 and the cumulative dose and risk calculations in Section C.4.1 of NEI 21-07, Revision 1. Section C.2 of NEI 21-07, Revision 1 also specifies that the applicant should identify the methods used, describe at a high level how they are applied to the radiological consequence evaluations, and describe the site characteristics modeled or assumed in the radiological consequence evaluations. The following clarifications and additions are included: a. Clarification: If the applicant has submitted separate licensing documents