Notice2026-11191
Regulatory Guide: Acceptability of ASME OM-2 Code, Component Testing Requirements at Nuclear Facilities
Primary source
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Published
June 4, 2026
Effective
June 4, 2026
Issuing agencies
Nuclear Regulatory Commission
Abstract
The U.S. Nuclear Regulatory Commission (NRC) is issuing Regulatory Guide (RG) 1.220, Revision 0, "Acceptability of ASME OM-2 Code, Component Testing Requirements at Nuclear Facilities." This new RG endorses, with a regulatory position, the American Society of Mechanical Engineers (ASME) Operation and Maintenance OM-2 Code, Component Testing Requirements at Nuclear Facilities, 2024 Edition, and describes an approach that is acceptable to the NRC staff for the development and implementation of an Inservice Testing (IST) Program for all types of nuclear facilities. This RG is effective on the date of Federal Register Notice publication, with a 30-day post-promulgation comment period.
Full Text
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<title>Federal Register, Volume 91 Issue 107 (Thursday, June 4, 2026)</title>
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[Federal Register Volume 91, Number 107 (Thursday, June 4, 2026)]
[Notices]
[Pages 33770-33772]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-11191]
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NUCLEAR REGULATORY COMMISSION
[NRC-2025-0677]
Regulatory Guide: Acceptability of ASME OM-2 Code, Component
Testing Requirements at Nuclear Facilities
AGENCY: Nuclear Regulatory Commission.
ACTION: Direct final guide; issuance and post-promulgation comment
period.
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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is issuing
Regulatory Guide (RG) 1.220, Revision 0, ``Acceptability of ASME OM-2
Code, Component Testing Requirements at Nuclear Facilities.'' This new
RG endorses, with a regulatory position, the American Society of
Mechanical Engineers (ASME) Operation and Maintenance OM-2 Code,
Component Testing Requirements at Nuclear Facilities, 2024 Edition, and
describes an approach that is acceptable to the NRC staff for the
development and implementation of an Inservice Testing (IST) Program
for all types of nuclear facilities. This RG is effective on the date
of Federal Register Notice publication, with a 30-day post-promulgation
comment period.
DATES: RG 1.220, Revision 0, takes effect on June 4, 2026. Post-
promulgation comments must be received by July 6, 2026. Comments
received after this date
[[Page 33771]]
will be considered if it is practical to do so, but the NRC is able to
ensure consideration only for comments received on or before this date.
Although a time limit is given, comments and suggestions in connection
with items for inclusion in guides currently being developed or
improvements in all published guides are encouraged at any time.
ADDRESSES: You may submit comments on RG 1.220, Revision 0, by any of
the following methods; however, the NRC encourages electronic comment
submission through the Federal rulemaking website.
<bullet> Federal Rulemaking Website: Go to <a href="https://www.regulations.gov">https://www.regulations.gov</a> and search for Docket ID NRC-2025-0677. Address
questions about Docket IDs in <a href="http://Regulations.gov">Regulations.gov</a> to Bridget Curran;
telephone: 301-415-1003; email: <a href="/cdn-cgi/l/email-protection#3674445f52515342187543444457587658445518515940"><span class="__cf_email__" data-cfemail="1b5969727f7c7e6f35586e69697a755b756978357c746d">[email protected]</span></a>. For technical
questions, contact the individual(s) listed in the FOR FURTHER
INFORMATION CONTACT section of this document.
<bullet> Mail comments to: Office of Administration, Mail Stop:
TWFN-5-A85, U.S. Nuclear Regulatory Commission, Washington, DC 20555-
0001, ATTN: Program Management, Announcements and Editing Staff.
For additional direction on obtaining information and submitting
comments, see ``Obtaining Information and Submitting Comments'' in the
SUPPLEMENTARY INFORMATION section of this document.
FOR FURTHER INFORMATION CONTACT: Thomas Scarbrough, Office of Nuclear
Reactor Regulation, telephone: 301-415-2794; email:
<a href="/cdn-cgi/l/email-protection#f7a39f989a9684d9a494968595859882909fb7998594d9909881"><span class="__cf_email__" data-cfemail="7e2a1611131f0d502d1d1f0c1c0c110b19163e100c1d50191108">[email protected]</span></a> and Amir Mobasheran, Office of Nuclear
Regulatory Research, telephone: 301-415-8112; email:
<a href="/cdn-cgi/l/email-protection#b9f8d4d0cb97f4d6dbd8cad1dccbd8d7f9d7cbda97ded6cf"><span class="__cf_email__" data-cfemail="490824203b6704262b283a212c3b282709273b2a672e263f">[email protected]</span></a>. Both are staff of the U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001.
SUPPLEMENTARY INFORMATION:
I. Obtaining Information and Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC-2025-0677 when contacting the NRC
about the availability of information for this action. You may obtain
publicly available information related to this action by any of the
following methods:
<bullet> Federal Rulemaking Website: Go to <a href="https://www.regulations.gov">https://www.regulations.gov</a> and search for Docket ID NRC-2025-0677.
<bullet> NRC's Agencywide Documents Access and Management System
(ADAMS): You may obtain publicly available documents online in the
ADAMS Public Documents collection at <a href="https://www.nrc.gov/reading-rm/adams.html">https://www.nrc.gov/reading-rm/adams.html</a>. To begin the search, select ``Begin ADAMS Public 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 <a href="/cdn-cgi/l/email-protection#1a4a5e4834487f69756f68797f5a746879347d756c"><span class="__cf_email__" data-cfemail="d2829680fc80b7a1bda7a0b1b792bca0b1fcb5bda4">[email protected]</span></a>.
RG 1.220, Revision 0, ``Acceptability of ASME OM-2 Code, Component
Testing Requirements at Nuclear Facilities,'' is available in ADAMS
under Accession No. ML25329A088. The regulatory analysis for the RG can
be found in ADAMS under Accession No. ML25329A089. Regulatory guides
are not copyrighted, and NRC approval is not required to reproduce
them.
<bullet> 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
<a href="/cdn-cgi/l/email-protection#752531275b2710061a00071610351b07165b121a03"><span class="__cf_email__" data-cfemail="b9e9fdeb97ebdccad6cccbdadcf9d7cbda97ded6cf">[email protected]</span></a> 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.
B. Submitting Comments
The NRC encourages electronic comment submission through the
Federal rulemaking website (<a href="https://www.regulations.gov">https://www.regulations.gov</a>). Please
include Docket ID NRC-2025-0677 in your comment submission.
The NRC cautions you not to include identifying or contact
information that you do not want to be publicly disclosed in your
comment submission. The NRC will post all comment submissions at
<a href="https://www.regulations.gov">https://www.regulations.gov</a> as well as enter the comment submissions
into ADAMS. The NRC does not routinely edit comment submissions to
remove identifying or contact information.
If you are requesting or aggregating comments from other persons
for submission to the NRC, then you should inform those persons not to
include identifying or contact information that they do not want to be
publicly disclosed in their comment submission. Your request should
state that the NRC does not routinely edit comment submissions to
remove such information before making the comment submissions available
to the public or entering the comment into ADAMS.
II. Discussion
The NRC is issuing, with a post-promulgation comment period, a RG
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 NRC'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 NRC staff is issuing Revision 0 of RG 1.220 to provide
applicants and licensees of all types of nuclear facilities with an
acceptable method for developing and implementing an IST program that
would demonstrate compliance with NRC regulations for submission of an
operating license or a combined operating license under part 50 of
title 10 of the Code of Federal Regulations (10 CFR), ``Domestic
Licensing of Production and Utilization Facilities'' or 10 CFR 52
``Licenses, Certification, and Approvals for Nuclear Power Plants,''
respectfully. This RG endorses, with a regulatory position, the ASME
Operation and Maintenance OM-2 Code for use by applicants of all types
of nuclear facilities that may have different types of reactor and
component designs.
The staff is also issuing a final regulatory analysis with a post-
promulgation comment period (ADAMS Accession No. ML25329A089). The
staff developed a regulatory analysis to assess the value of issuing an
RG as well as an alternative course of action.
III. Post-Promulgation Comment Procedure
The NRC considers this action to be non-controversial, and is
issuing this guidance document as a direct final RG with a 30-day post-
promulgation comment period. This RG is effective on June 4, 2026.
However, if the NRC receives comments that causes the NRC to make a
change to this direct final RG by July 6, 2026, then the NRC will
publish a Federal Register Notice that withdraws the guidance document
and will address the comments received in a subsequent final RG or as
otherwise appropriate.
IV. 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.
V. Backfitting, Forward Fitting, and Issue Finality
Issuance of RG 1.220 does not constitute backfitting as defined in
10 CFR 50.109, ``Backfitting,'' and as described in NRC Management
Directive (MD) 8.4, ``Management of Backfitting, Forward Fitting, Issue
Finality, and Information Requests''; constitute
[[Page 33772]]
forward fitting as that term is defined and described in MD 8.4; or
affect the issue finality of any approval issued under 10 CFR part 52,
``Licenses, Certifications, and Approvals for Nuclear Power Plants.''
As explained in Revision 0 of RG 1.220, applicants and licensees
generally are not required to comply with the positions in the RG.
VI. 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 <a href="https://www.nrc.gov/reading-rm/doc-collections/reg-guides/contactus.html">https://www.nrc.gov/reading-rm/doc-collections/reg-guides/contactus.html</a>.
Suggestions will be considered in future updates and enhancements to
the ``Regulatory Guide'' series.
VII. Executive Order (E.O.) 12866
The Office of Information and Regulatory Affairs determined that
this RG is not a significant regulatory action under E.O. 12866.
Authority: 42 U.S.C. 2011 et seq.
Dated: June 2, 2026.
For the Nuclear Regulatory Commission.
James Steckel,
Acting Chief, Regulatory Guide and Programs Management Branch, Division
of Engineering, Office of Nuclear Regulatory Research.
[FR Doc. 2026-11191 Filed 6-3-26; 8:45 am]
BILLING CODE 7590-01-P
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