ML21112A190: Difference between revisions

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{{#Wiki_filter:April 14, 2021 MEMORANDUM TO:                Margaret M. Doane Executive Director for Operations Digitally signed by Christopher T. Hanson FROM:                          Chairman Hanson      Christopher T. Hanson    Date: 2021.04.14 13:26:36 -04'00'
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==SUBJECT:==
THE ADVISORY COMMITTEE ON REACTOR SAFEGUARDS MEMORANDUM TITLED: UNI-DIRECTIONAL COMMUNICATIONS (NOT IMPLEMENTED IN SOFTWARE)
FROM HIGH SAFETY TO LOWER SAFETY SYSEMS AND INTERNAL PLANT TO EXTERNAL SYSTEMS CONNECTED TO THE INTERNET On March 31, 2021, Chairman Sunseri of the Advisory Committee on Reactor Safeguards (ACRS) provided me a memorandum titled, Uni-Directional Communications (Not Implemented in Software) From High Safety to Lower Safety Systems and Internal Plant to External Systems Connected to the Internet. In this memorandum, Chairman Sunseri stated that Commission direction to the staff is needed to assure, during design reviews, that only uni-directional hardware-based data communications mechanisms are used when there are communications between High Safety-Significance systems and those of Lower Safety-Significance.
I direct the NRC staff to undertake a review and within 90 days provide the Commission information on how the issues raised by the ACRS have been addressed. If the staff determines that no regulatory actions are warranted, the staff should provide the Commission with the staffs basis for that conclusion.
cc:      Commissioner Baran Commissioner Caputo Commissioner Wright A. Vietti-Cook, SECY M. Zobler, OGC S. Moore, ACRS M. Sunseri, ACRS
 
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==SUBJECT:==
THE ADVISORY COMMITTEE N REACTOR SAFEGUARDS MEMORANDUM TITLED: UNI-DIRECTIONAL COMMUNICATINS (NOT IMPLEMENTED IN SOFTWARE) FROM HIGH SAFETY TO LOWER SAFETY SYSEMS AND INTERNAL PLANT TO EXTERNAL SYSTEMS CONNECTED TO THE INTERNET DATED: APRIL 14, 2021 OFFICE        COS            OCM NAME          MMarsh /RA/    Chanson /RA/
DATE          4/14/21        4/14/21}}

Revision as of 17:52, 8 September 2021

20210414 Memo from Chairman Christopher Hanson to Margie Doane, Regarding ACRS: Uni-Directional Communications (Not Implemented in Software) from High Safety to Lower Safety Systems and Internal Plant to External Systems Connected to the in
ML21112A190
Person / Time
Issue date: 04/14/2021
From: Christopher Hanson
NRC/Chairman
To: Margaret Doane
NRC/EDO
Blake, Kathleen
References
Download: ML21112A190 (2)
v • d • e


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