Assessment of the Quality of PRAs

July 27, 2000

MEMORANDUM TO:    William D. Travers
Executive Director for Operations
FROM: John T. Larkins, Executive Director
Advisory Committee on Reactor Safeguards

During the 474th meeting of the Advisory Committee on Reactor Safeguards, July 12-14, 2000, the staff made a presentation on PRA Quality. At that time, the Committee was advised that the Commission Paper on PRA Quality was being revised. Therefore, the Committee decided to defer comment on the Commission Paper until a revised version of the document is received.

The Committee plans to review and provide comments on the revised version of the Commission Paper.


  1. Memorandum dated April 18, 2000, from Annette Vietti-Cook, Secretary, NRC, to William D. Travers, Executive Director for Operations, NRC, Subject: Staff Requirements - Briefing on Risk-Informed Regulation Implementation Plan (SECY-00-0062).

  2. Draft Memorandum received June 30, 2000, from William D. Travers, Executive Director for Operations, NRC, to The Commissioners, Subject: Addressing PRA Quality in Risk-Informed Applications.

  3. Memorandum dated June 19, 2000, from Samuel J. Collins, Director, NRR, to Ashok C. Thadani, Director, RES, Subject: Request for Assistance in Review of NEI 00-02, "Probabilistic Risk Assessment Peer Review Process Guidance."
cc:   A. Vietti-Cook, SECY
J. Craig, OEDO
G. Millman, OEDO
S. Collins, NRR
G. Holahan, NRR
A. Thadani, RES
T. King, RES
M. Cunningham, RES
M. Drouin, RES

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