ML25202A103
| ML25202A103 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 07/23/2025 |
| From: | Daniel Bacon NRC/RGN-II/DORS/EB2 |
| To: | Erb D Tennessee Valley Authority |
| References | |
| IR 2025403 | |
| Download: ML25202A103 (1) | |
See also: IR 05000327/2025403
Text
Delson C. Erb
Vice President, Fleet Support
Tennessee Valley Authority
Chattanooga, TN 37402-2801
SUBJECT:
SEQUOYAH NUCLEAR PLANT - NOTIFICATION OF AN NRC
CYBERSECURITY BASELINE INSPECTION (NRC INSPECTION REPORT
05000327/2025403 AND 05000328/2025403) AND REQUEST FOR
INFORMATION (RFI)
Dear Delson Erb:
On September 22, 2025, the U.S. Nuclear Regulatory Commission (NRC) will begin a baseline
inspection in accordance with Inspection Procedure (IP) 71130.10 Cyber-Security, Revision 0
at your Turkey Point Nuclear Generating Station. The inspection will be performed to evaluate
and verify your ability to meet the requirements of the NRCs Cyber-Security Rule, Title 10,
Code of Federal Regulations (CFR), Part 73, Section 54, Protection of Digital Computer and
Communication Systems and Networks. The onsite portion of the inspection will take place
during the week of September 22, 2025.
Experience has shown that baseline inspections are extremely resource intensive, both for the
NRC inspectors and the licensee staff. To minimize the inspection impact on the site and to
ensure a productive inspection for both parties, we have enclosed a request for documents
needed for the inspection. These documents have been divided into four groups.
The first group specifies information necessary to assist the inspection team in choosing the
focus areas (i.e., sample set) to be inspected by the cyber-security IP. This information should
be made available via compact disc and delivered to the regional office no later than August 8th,
2025. The inspection team will review this information and, by August 15th, 2025, will request
the specific items that should be provided for review.
The second group of additional requested documents will assist the inspection team in the
evaluation of the critical systems and critical digital assets (CSs/CDAs), defensive architecture,
and the areas of the licensees CSP selected for the cyber-security inspection. This information
will be requested for review in the regional office prior to the inspection, by September 12, 2025.
July 23, 2025
D. Erb
2
The third group of requested documents consists of those items that the inspection team will
review, or need access to, during the inspection. Please have this information available by the
first day of the onsite inspection.
The fourth group of information is necessary to aid the inspection team in tracking issues
identified during the inspection. It is requested that this information be provided to the lead
inspector as the information is generated during the inspection. It is important that all these
documents are up to date and complete in order to minimize the number of additional
documents requested during the preparation and/or the onsite portions of the inspection.
The lead inspector for this inspection is Jonathan Montgomery. We understand that our
regulatory contact for this inspection is Zachary Kitts of your organization. If there are any
questions about the inspection or the material requested, please contact the lead inspector at
404-997-4880 or via e-mail at jonathan.montgomery@nrc.gov.
This letter contains mandatory information collections that are subject to the Paperwork
Reduction Act of 1995 (44 U.S.C. 3501 et seq.). The Office of Management and Budget (OMB)
approved these information collections under approval number 3150-0011. The burden to the
public for these information collections is estimated to average 40 hour4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br />(s) per response. Send
comments regarding this information collection to the FOIA, Library and Information Collection
Branch, Office of the Chief Information Officer, Mail Stop: T6-A10M, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001, or by email to Infocollects.Resource@nrc.gov, and
to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0011)
OMB, Washington, DC 20503.
The NRC may not conduct or sponsor, and a person is not required to respond to, a request for
information or an information collection requirement unless the requesting document displays a
currently valid Office of Management and Budget control number.
D. Erb
3
In accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding,
of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be available
electronically for public inspection in the NRCs Public Document Room or from the Publicly
Available Records (PARS) component of the NRC's Agencywide Documents Access and
Management System (ADAMS). ADAMS is accessible from the NRC Web site at
http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
Daniel Bacon, Chief
Engineering Branch 2
Division of Reactor Safety
Docket No.: 50-327, 50-328
Enclosures:
Sequoyah Cyber Security Inspection
Document Request
cc w/ enclosure: Distribution via LISTSERV
Riley, Marcus signing on behalf
of Bacon, Daniel
on 07/23/25
X
Review
X
Non-Sensitive
Sensitive
X
Publicly Available
Non-Publicly Available
OFFICE
RII/DORS
RII/DORS
NAME
J. Montgomery
D. Bacon
DATE
7/22/2025
7/23/2025
SEQUOYAH CYBER-SECURITY INSPECTION DOCUMENT REQUEST
Enclosure
Inspection Report: 05000327/2025403 AND 05000328/2025403
Inspection Dates:
September 22-26, 2025
Inspection Procedure:
IP 71130.10, Cyber-Security, Revision 0
Reference:
ML21330A088, Guidance Document for Development of the
Request for Information (RFI) and Notification Letter for
Full-Implementation of the Cyber-Security Inspection,
Revision 2D
NRC Inspectors:
Folajimi (Jimi) Alamudun
404-997-4880
404-997-4490
Jonathan.Montgomery@nrc.gov
Folajimi.Alamudun@nrc.gov
NRC Contractors:
Justin Bowden
Ronald Ingram
Justin.bowden@nrc.gov
Ronald.ingram@nrc.gov
I.
Information Requested for In-Office Preparation
The initial request for information (i.e., first RFI) concentrates on providing the inspection
team with the general information necessary to select appropriate components and CSP
elements to develop a site-specific inspection plan. The first RFI is used to identify the
list of critical systems and critical digital assets (CSs/CDAs) plus operational and
management (O&M) security control portions of the CSP to be chosen as the sample
set required to be inspected by the cyber-security IP. The first RFIs requested
information is specified below in Table RFI #1. The Table RFI #1 information is
requested to be provided to the regional office by August 8th, 2025, or sooner, to
facilitate the selection of the specific items that will be reviewed during the onsite
inspection weeks.
The inspection team will examine the returned documentation from the first RFI and
identify/select specific systems and equipment (e.g., CSs/CDAs) to provide a more
focused follow-up request to develop the second RFI. The inspection team will submit
the specific systems and equipment list to your staff by August 15th, 2025, which will
identify the specific systems and equipment that will be utilized to evaluate the
CSs/CDAs, defensive architecture, and the areas of the licensees CSP selected for the
cyber-security inspection. We request that the additional information provided from the
second RFI be made available to the regional office prior to the inspection by
September 12th, 2025. All requests for information shall follow the guidance document
referenced above. Items that have been struck through do not require a response. Bold
items denote items that are not explicitly referenced in the guidance document above.
SEQUOYAH CYBER-SECURITY INSPECTION DOCUMENT REQUEST
2
The required Table RFI 1 information shall be provided on either digital media (CD/DVD)
or an online repository to the lead inspector by August 8th, 2025. The preferred file
format for all lists is a searchable Excel spreadsheet file. The information should be
indexed and hyper-linked to facilitate ease of use. If you have any questions regarding
this information, please call the inspection team leader as soon as possible.
Table RFI #1
Section 3,
Paragraph Number/Title:
IP Ref
1
A list of all Identified Critical Systems and Critical Digital Assets,-
highlight/note any additions, deletions, reclassifications due to new
guidance from white papers, changes to NEI 10-04, 13-10, etc. since
the last cyber security inspection.
Overall
2
A list of EP and Security onsite and offsite digital communication
systems
Overall
3
Network Topology Diagrams to include information and data flow for
critical systems in levels 2, 3 and 4 (If available)
Overall
4
Ongoing Monitoring and Assessment program documentation
03.01(a)
5
The most recent effectiveness analysis of the Cyber Security Program
03.01(b)
6
Vulnerability screening/assessment and scan program documentation
03.01(c)
7
Cyber Security Incident response documentation, including incident
detection, response, and recovery documentation as well as
contingency plan development, implementation and including any
program documentation that requires testing of security boundary
device functionality
03.02(a)
and
03.04(b)
8
Device Access and Key Control documentation
03.02(c)
9
Password/Authenticator documentation
03.02(c)
10
User Account/Credential documentation
03.02(d)
11 Portable Media and Mobile Device control documentation, including
kiosk security control assessment/documentation
03.02(e)
12
Design change/ modification program documentation and a List of all
design changes completed since the last cyber security inspection,
including, either, a summary of the design change, or the 50.59
documentation for the change.
03.03(a)
13
Supply Chain Management documentation including any security
impact analysis for new acquisitions
03.03(a)
, (b) and
(c)
SEQUOYAH CYBER-SECURITY INSPECTION DOCUMENT REQUEST
3
Table RFI #1
Section 3,
Paragraph Number/Title:
IP Ref
14
Configuration Management documentation including any security
impact analysis performed due to configuration changes since the last
inspection
03.03(a)
and (b)
15
Cyber Security Plan and any 50.54(p) analysis to support changes to
the plan since the last inspection
03.04(a)
16
Cyber Security Metrics tracked (if applicable)
03.06
(b)
17
Provide documentation describing any cyber security changes to the
access authorization program since the last cyber security inspection.
Overall
18
List of all procedures and policies provided to the NRC with their
descriptive name and associated number (if available)
Overall
19
Performance testing report (if applicable)
03.06
(a)
20
Any cybersecurity event reports submitted in accordance with
10 CFR 73.77 since the last cybersecurity inspection and any
copies of any recordable cybersecurity events since the last
inspection
03.04(a)
Based on this information, the inspection team will identify and select specific systems
and equipment (e.g., CSs/CDAs) from the information requested by Table RFI #1 and
submit a list of specific systems and equipment to your staff by August 15th, 2025 for
the second RFI (i.e., RFI #2).
II.
Additional Information Requested to be Available Prior to Inspection.
As stated in Section I above, the inspection team will examine the returned
documentation requested from Table RFI #1 and submit the list of specific systems and
equipment to your staff by August 15th, 2025 for the second RFI (i.e., RFI #2). The
second RFI will request additional information required to evaluate the CSs/CDAs,
defensive architecture, and the areas of the licensees CSP selected for the cyber-
security inspection. The additional information requested for the specific systems and
equipment is identified in Table RFI #2. All requested information shall follow the
guidance document referenced above. Items that have been struck through do not
require a response. Bold items denote items that are not explicitly referenced in the
guidance document above.
The Table RFI #2 information shall be provided to the lead inspector by September 12th,
2025. The preferred file format for all lists is a searchable Excel spreadsheet. The
information should be indexed and hyper-linked to facilitate ease of use. If you have any
questions regarding this information, please call the inspection team leader as soon as
possible.
SEQUOYAH CYBER-SECURITY INSPECTION DOCUMENT REQUEST
4
Table RFI #2
Section 3,
Paragraph Number/Title:
Items
For the CDAs/system(s) chosen for inspection provide:
1
Ongoing Monitoring and Assessment activity performed on the
CDAs/system(s)
03.01(a)
2
All Security Control Assessments for the selected CDAs/system(s)
03.01(a)
3
All vulnerability screenings/assessments associated with, or scans
performed on, the selected CDAs/system(s) since the last cyber
security inspection
All vulnerability screenings and assessments completed prior
to putting new equipment into service as part of the select
design changes
03.01(c)
4
Documentation (including configuration files and rules sets) for
Network-based Intrusion Detection/Protection Systems (NIDS/NIPS),
Host-based Intrusion Detection Systems (HIDS), and Security
Information and Event Management (SIEM) systems for the selected
CDAs/system(s) (i.e. the devices that are credited for protection for
the selected systems)
03.02(b)
5
Documentation (including configuration files and rule sets) for intra-
security level firewalls and boundary devices used to protect the
selected CDAs/system(s)
03.02(c)
6
Copies of all periodic reviews of the access authorization list for the
selected systems since the last inspection
03.02(d)
7
Baseline configuration data sheets for the selected CDAs/system(s)
03.03(a)
8
Security Impact Analyses performed for selected design changes
03.03(b)
9
Copies of the purchase order documentation for selected design
changes
03.03(c)
10
Copies of any reports/assessment for cyber security drills performed
since the last inspection.
03.02(a)
03.04(b)
11
Copy of the individual recovery plan(s) for the selected
CDAs/system(s) including documentation of the results the last time
the backups were executed.
03.02(a)
03.04(b)
12
Corrective actions taken as a result of cyber security incidents/issues
to include previous NRC violations and Licensee Identified Violations
since the last cyber security inspection
03.04(d)
SEQUOYAH CYBER-SECURITY INSPECTION DOCUMENT REQUEST
5
Table RFI #2
Section 3,
Paragraph Number/Title:
Items
13
The most recent Cybersecurity Quality Assurance audit and/or
self-assessment and a list of Corrective Actions generated as a
result
III.
Information Requested to be Available on First Day of Inspection
For the specific systems and equipment identified in Section II above, provide the
following RFI (i.e., Table 1ST Week Onsite) to the team by the first day of the inspection.
All requested information shall follow the guidance document referenced above. Items
that have been struck through do not require a response. Bold denotes items that are
not explicitly referenced in the guidance document above.
The preferred file format for all lists is a searchable Excel spreadsheet file. The
information should be indexed and hyper-linked to facilitate ease of use. If you have any
questions regarding this information, please call the inspection team leader as soon as
possible.
Table 1ST Week Onsite
Section 3,
Paragraph Number/Title:
Items
1
Any cyber security event reports submitted in accordance with 10
CFR 73.77 since the last cyber security inspection
03.04(a)
2
Updated Copies of corrective actions taken as a result of cyber
security incidents/issues, to include previous NRC violations and
Licensee Identified Violations since the last cyber security
inspection, as well as vulnerability-related corrective actions
03.04(d)
3
Copies of corrective actions written for issues identified since
receipt of RFI #1.
4
The most recent Cyber-Security Quality Assurance (QA) audit
and/or self-assessment
5
Corrective action documents (e.g., condition reports, including
status of corrective actions) generated as a result of the most
recent Cyber-Security Quality Assurance (QA) audit and/or
self-assessment
IV.
Information Requested to be Provided Throughout the Inspection
(1) Copies of any corrective action documents generated as a result of the
inspection teams questions or queries during the inspection.
SEQUOYAH CYBER-SECURITY INSPECTION DOCUMENT REQUEST
6
(2) Copies of the list of questions submitted by the inspection team members and
the status/resolution of the information requested (provided daily during the
inspection to each inspection team member).
If you have any questions regarding the information requested, please contact the inspection
team leader.