Regulatory Guide: Acceptability of ASME OM-2 Code, Component Testing Requirements at Nuclear Facilities

Issuing agencies

Abstract

The U.S. Nuclear Regulatory Commission (NRC) is confirming the effective date of August 18, 2026, for Revision 0 of Regulatory Guide (RG) 1.220, "Acceptability of ASME OM-2 Code, Component Testing Requirements at Nuclear Facilities." The RG was noticed in the Federal Register on June 4, 2026, with a follow up Correction to the Notice, published on June 22, 2026, stating the effective date of August 18, 2026. 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.

Full Text

<html>
<head>
<title>Federal Register, Volume 91 Issue 205 (Monday, October 26, 2026)</title>
</head>
<body><pre>
[Federal Register Volume 91, Number 205 (Monday, October 26, 2026)]
[Notices]
[Pages 67337-67338]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-21781]


=======================================================================
-----------------------------------------------------------------------

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; confirmation of effective date.

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

SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is confirming the 
effective date of August 18, 2026, for Revision 0 of Regulatory Guide 
(RG) 1.220, ``Acceptability of ASME OM-2 Code, Component Testing 
Requirements at Nuclear Facilities.'' The RG was noticed in the Federal 
Register on June 4, 2026, with a follow up Correction to the Notice, 
published on June 22, 2026, stating the effective date of August 18, 
2026. 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.

DATES: The effective date of August 18, 2026, for the direct final RG 
1.220, Revision 0, published on June 4, 2026 (91 FR 33770), as 
corrected on June 22, 2026 (91 FR 37152), is confirmed.

ADDRESSES: 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

[[Page 67338]]

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#5c1e2e35383b3928721f292e2e3d321c322e3f723b332a"><span class="__cf_email__" data-cfemail="d496a6bdb0b3b1a0fa97a1a6a6b5ba94baa6b7fab3bba2">[email&#160;protected]</span></a>. For technical questions, contact the 
individual(s) listed in the FOR FURTHER INFORMATION CONTACT section of 
this document.
    <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#346470661a6651475b41465751745a46571a535b42"><span class="__cf_email__" data-cfemail="90c0d4c2bec2f5e3ffe5e2f3f5d0fee2f3bef7ffe6">[email&#160;protected]</span></a>.
    <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#431307116d1126302c36312026032d31206d242c35"><span class="__cf_email__" data-cfemail="ffafbbadd1ad9a8c908a8d9c9abf918d9cd1989089">[email&#160;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.
    RG 1.220, Revision 0, and the Regulatory Analysis, may be found in 
ADAMS under Accession Nos. ML25329A088 and ML25329A089, respectively. 
RGs are not copyrighted, and NRC approval is not required to reproduce 
them.

FOR FURTHER INFORMATION CONTACT: Thomas Scarbrough, Office of Nuclear 
Reactor Regulation, telephone: 301-415-2794; email: 
<a href="/cdn-cgi/l/email-protection#03576b6c6e62702d5060627161716c76646b436d71602d646c75"><span class="__cf_email__" data-cfemail="eabe8285878b99c4b9898b988898859f8d82aa849889c48d859c">[email&#160;protected]</span></a> and Amir Mobasheran, Office of Nuclear 
Material Safety and Safeguards, telephone: 301-415-8112; email: 
<a href="/cdn-cgi/l/email-protection#0a4b676378244765686b79626f786b644a647869246d657c"><span class="__cf_email__" data-cfemail="27664a4e55096a484546544f425546496749554409404851">[email&#160;protected]</span></a>. Both are staff of the U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001.

SUPPLEMENTARY INFORMATION: The NRC published direct final RG 1.220, 
Revision 0, to endorse, 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. The Federal Register notice for the direct final RG was 
published on June 4, 2026 (91 FR 33770), with a correction published on 
June 22, 2026 (91 FR 37152). This direct final RG became effective as 
scheduled, on August 18, 2026, and does not require revision as no 
significant adverse comments were received.

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.
    Authority: 42 U.S.C. 2011 et seq.


    Dated: October 22, 2026.

    For the Nuclear Regulatory Commission.
Nicholee Valentine,
Chief, Guidance and Publication Branch, Division of Guidance, 
Rulemaking, Economic Analysis, and Technical Editing, Office of Nuclear 
Material Safety and Safeguards.
[FR Doc. 2026-21781 Filed 10-23-26; 8:45 am]
BILLING CODE 7590-01-P


</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>