[Federal Register Volume 88, Number 144 (Friday, July 28, 2023)]
[Rules and Regulations]
[Pages 48717-48718]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-15990]



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 Rules and Regulations
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  Federal Register / Vol. 88, No. 144 / Friday, July 28, 2023 / Rules 
and Regulations  

[[Page 48717]]



NUCLEAR REGULATORY COMMISSION

10 CFR Part 73

[NRC-2023-0068]


Regulatory Guide: Cybersecurity Event Notifications

AGENCY: Nuclear Regulatory Commission.

ACTION: Final guide; issuance.

-----------------------------------------------------------------------

SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is issuing 
Revision 1 to Regulatory Guide (RG), 5.83, ``Cybersecurity Event 
Notifications.'' This revision describes methods that the staff of the 
NRC considers acceptable for licensees to meet requirements in NRC 
regulations to report and record cybersecurity events.

DATES: Revision 1 to RG 5.83 is available on July 28, 2023.

ADDRESSES: Please refer to Docket ID NRC-2023-0068 when contacting the 
NRC about the availability of information regarding this document. You 
may obtain publicly available information related to this document 
using any of the following methods:
     Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC-2023-0068. Address 
questions about Docket IDs in Regulations.gov to Stacy Schumann; 
telephone: 301-415-0624; email: [email protected]. For technical 
questions, contact the individuals listed in the FOR FURTHER 
INFORMATION CONTACT section of this document.
     NRC's Agencywide Documents Access and Management System 
(ADAMS): You may obtain publicly available documents online in the 
ADAMS Public Documents collection at https://www.nrc.gov/reading-rm/adams.html. To begin the search, select ``Begin Web-based ADAMS 
Search.'' For problems with ADAMS, please contact the NRC's Public 
Document Room (PDR) reference staff at 1-800-397-4209, at 301-415-4737, 
or by email to [email protected]. The ADAMS accession number for 
each document referenced (if it is available in ADAMS) is provided the 
first time that it is mentioned in this document.
     NRC's PDR: The PDR, where you may examine and order copies 
of publicly available documents, is open by appointment. To make an 
appointment to visit the PDR, please send an email to 
[email protected] or call 1-800-397-4209 or 301-415-4737, between 8 
a.m. and 4 p.m. eastern time (ET), Monday through Friday, except 
Federal holidays.
    Revision 1 to RG 5.83 and the response to public comments may be 
found in ADAMS under Accession Nos. ML23087A017 and ML23087A018, 
respectively.
    Regulatory guides are not copyrighted, and NRC approval is not 
required to reproduce them.

FOR FURTHER INFORMATION CONTACT: Daniel Warner, Office of Nuclear 
Security and Incident Response, telephone: 301-287-3642; email: 
[email protected]; and Stanley Gardocki, Office of Nuclear 
Regulatory Research, telephone: 301-415-1067; email: 
[email protected]. Both are staff of the U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001.

SUPPLEMENTARY INFORMATION: 

I. Discussion

    The NRC is issuing a revision in the NRC's ``Regulatory Guide'' 
series. This series was developed to describe methods that are 
acceptable to the NRC staff for implementing specific parts of the 
agency's regulations, to explain techniques that the staff uses in 
evaluating specific issues or postulated events, and to describe 
information that the staff needs in its review of applications for 
permits and licenses.
    The proposed Revision 1 to RG 5.83 was issued with a temporary 
identification of Draft Regulatory Guide, DG-5079 (ADAMS Accession No. 
ML22250A443).
    This revision of the guide (Revision 1) addresses new concerns 
identified since the NRC first issued RG 5.83 in 2015. The primary 
changes made have been to align the definitions in the glossary with 
those in recent updates to RG 5.71, and to provide clarification in the 
eight-hour notification section about the reportability of malicious 
activity against devices that reside on the same networks as critical 
digital assets (CDAs) or that support CDAs.

II. Additional Information

    The NRC published a notice of the availability of DG-5079 in the 
Federal Register on April 24, 2023 (88 FR 24715), for a 30-day public 
comment period. The public comment period closed on May 24, 2023. 
Public comments on DG-5079 and the staff responses to the public 
comments are available under ADAMS under Accession No. ML23087A018.
    As noted in the Federal Register on December 9, 2022 (87 FR75671), 
this document is being published in the ``Rules'' section of the 
Federal Register to comply with publication requirements under title 1 
of the Code of Federal Regulations (1 CFR), chapter I.

III. Congressional Review Act

    This RG is a rule as defined in the Congressional Review Act (5 
U.S.C. 801-808). However, the Office of Management and Budget has not 
found it to be a major rule as defined in the Congressional Review Act.

IV. Backfitting, Forward Fitting, and Issue Finality

    Issuance of RG 5.83, Revision 1, does not constitute backfitting as 
defined in Sec.  50.109 of title 10 of the Code of Federal Regulations 
(10 CFR), ``Backfitting,'' and as described in NRC Management Directive 
(MD) 8.4, ``Management of Backfitting, Forward Fitting, Issue Finality, 
and Information Requests'' (ADAMS Accession No. ML18093B087); 
constitute forward fitting as that term is defined and described in MD 
8.4; or affect issue finality of any approval issued under 10 CFR part 
52, ``Licenses, Certifications, and Approvals for Nuclear Power 
Plants.'' As explained in RG 5.83, Revision 1, applicants and licensees 
are not required to comply with the positions set forth in this guide.

V. Submitting Suggestions for Improvement of Regulatory Guides

    A member of the public may, at any time, submit suggestions to the 
NRC for improvement of existing RGs or for the development of new RGs. 
Suggestions can be submitted on the NRC's public website at https://
www.nrc.gov/reading-rm/doc-collections/reg-guides/

[[Page 48718]]

contactus.html. Suggestions will be considered in future updates and 
enhancements to the ``Regulatory Guide'' series.

    Dated: July 24, 2023.

    For the Nuclear Regulatory Commission.
Meraj Rahimi,
Chief, Regulatory Guide and Programs Management Branch, Division of 
Engineering, Office of Nuclear Regulatory Research.
[FR Doc. 2023-15990 Filed 7-27-23; 8:45 am]
BILLING CODE 7590-01-P