NRC Staff Positions on PRA Standards

Welcome to the public database website for information related to NRC staff positions on Probabilistic Risk Assessment (PRA) Standards. 

The purpose of this site is to provide a user-friendly format for accessing publicly available NRC staff positions related to PRA standards developed by the American Society of Mechanical Engineers and American Nuclear Society Joint Committee on Nuclear Risk Management. The database format for these reports supports sorting, searching, and filtering functions to assist users in reviewing the documents.

Follow the links below to the desired database report.

Please feel free to leave us feedback about this website or the contents of the reports here.

Single Document Reports

Regulatory Guide 1.200 Revision 2

Regulatory Guide 1.200 Revision 3, Appendix A

Regulatory Guide 1.200 Revision 3, Appendix B (Seismic Code Case 1)

Regulatory Guide 1.247 (Trial Use)

DC/COL-ISG-028

Comparison Reports

Regulatory Guide 1.200 Revisions 2 and 3

PRA Methods

PRA Methods Database

PRA Methods Database Acronyms and Abbreviations

Links to Additional Resources

NEI 17-07, Revision 2

PWROG-190270NP, Revision 2

NEI 00-02, Revision A3

NEI 05-04, Revision 2

NEI 07-12, Revision 0, Draft H

NEI 12-13

NEI 05-04/07-12/2-06 Appendix X

NEI 20-09, Revision 1

Links to NRC Guidance Documents

RG 1.200, Revision 3

RG 1.200, Revision 2

RG 1.247 (Trial Use)

DC/COL-ISG-028

This work has been conducted by Sandia National Laboratories (SNL) for NRC task order “Support Development of PRA For Risk-Informed Activities” under Enterprise Wide Agreement “Technical Assistance in Support of Agency Programs”. The task order involves efforts associated with both LWRs and Non-LWR technologies.