Proposed Rule2026-16025
Transport Airplane and Propulsion Certification Modernization; Extension of Comment Period
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
August 6, 2026
Effective
June 26, 2026
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
This action extends the comment period for a NPRM titled "Transport Airplane and Propulsion Certification Modernization" that was published on June 26, 2026. In that document, FAA proposed to amend various airworthiness regulations to modernize certain certification standards for transport category airplanes and propulsion systems. This rule would be both deregulatory and relieving by reducing the number of exemptions, special conditions, and equivalent level of safety findings required during the certification process. FAA expects that this proposal would reduce certification costs and time to certify new and changed products for both industry and FAA while maintaining or increasing the level of safety provided by the current regulations. FAA proposes to remove Special Federal Aviation Regulation No. 109 from part 25 and relocate certain of its requirements. Finally, this action would address industry and National Transportation Safety Board recommendations while also harmonizing FAA's regulations with international standards. FAA is extending the comment period closing date, on request, to allow commenters additional time to analyze the proposed rule and prepare a response.
Full Text
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<title>Federal Register, Volume 91 Issue 150 (Thursday, August 6, 2026)</title>
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[Federal Register Volume 91, Number 150 (Thursday, August 6, 2026)]
[Proposed Rules]
[Pages 50738-50739]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-16025]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No.: FAA-2026-0430; Notice No. 26-09]
RIN 2120-AL42
Transport Airplane and Propulsion Certification Modernization;
Extension of Comment Period
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM); Extension of comment
period.
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SUMMARY: This action extends the comment period for a NPRM titled
``Transport Airplane and Propulsion Certification Modernization'' that
was published on June 26, 2026. In that document, FAA proposed to amend
various airworthiness regulations to modernize certain certification
standards for transport category airplanes and propulsion systems. This
rule would be both deregulatory and relieving by reducing the number of
exemptions, special conditions, and equivalent level of safety findings
required during the certification process. FAA expects that this
proposal would reduce certification costs and time to certify new and
changed products for both industry and FAA while maintaining or
increasing the level of safety provided by the current regulations. FAA
proposes to remove Special Federal Aviation Regulation No. 109 from
part 25 and relocate certain of its requirements. Finally, this action
would address industry and National Transportation Safety Board
recommendations while also harmonizing FAA's regulations with
international standards. FAA is extending the comment period closing
date, on request, to allow commenters additional time to analyze the
proposed rule and prepare a response.
DATES: The comment period for the NPRM published on June 26, 2026, at
91 FR 38878, is extended. Comments should be received on or before
September 24, 2026.
ADDRESSES: Send comments identified by docket number FAA-2026-0430
using any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">www.regulations.gov</a> and
follow the online instructions for sending your comments
electronically.
<bullet> Mail: Send comments to Docket Operations; U.S. Department
of Transportation (DOT), 1200 New Jersey Avenue SE, West Building, 5th
Floor (W58-213), Washington, DC 20590-0001.
<bullet> Hand Delivery or Courier: Take comments to Docket
Operations in Room W58-213 of the West Building 5th Floor at 1200 New
Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
<bullet> Fax: Fax comments to Docket Operations at (202) 493-2251.
Docket: Background documents or comments received may be read at
<a href="http://www.regulations.gov">www.regulations.gov</a> at any time. Follow the online instructions for
accessing the docket or go to the Docket Operations in Room W58-213 of
the West Building 5th Floor at 1200 New Jersey Avenue SE, Washington,
DC 20590 between 9 a.m. and 5 p.m., Monday through Friday, except
Federal holidays.
FOR FURTHER INFORMATION CONTACT: James Wilborn, AIR-62A, Product Policy
Management: Transport Airplanes & Engines Section, Policy and Standards
Division, Aircraft Certification Service, Federal Aviation
Administration, 2200 South 216th Street, Des Moines, WA 98198; (206)
231-3237; <a href="/cdn-cgi/l/email-protection#6228030f07114c350b0e000d100c220403034c050d14"><span class="__cf_email__" data-cfemail="783219151d0b562f11141a170a16381e1919561f170e">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
FAA invites interested persons to participate in this rulemaking by
submitting written comments, data, or views. FAA also invites comments
relating to the economic, environmental, energy, or federalism impacts
that might result from adopting the proposals in this document. The
most helpful comments reference a specific portion of the proposal,
explain the reason for any recommended change, and include supporting
data. To ensure the docket does not contain duplicate comments,
commenters should send only one copy of written comments, or if
comments are filed electronically, commenters should submit only one
time.
FAA will file in the docket all comments it receives, as well as a
report summarizing each substantive public contact with FAA personnel
concerning this proposed rulemaking. Before acting on this proposal,
FAA will consider all comments it receives on or before the closing
date for comments. FAA will consider comments filed after the comment
period has closed if it is possible to do so without incurring expense
or delay. FAA may change this proposal in light of the comments it
receives.
Privacy: In accordance with 5 U.S.C. 553(c), DOT solicits comments
from the public to better inform its rulemaking process. DOT posts
these comments, without edit, including any personal information the
commenter provides, to <a href="http://www.regulations.gov">www.regulations.gov</a>, as described in the system
of records notice (DOT/ALL-14 FDMS), which can be reviewed at
<a href="http://www.dot.gov/privacy">www.dot.gov/privacy</a>.
Confidential Business Information
Confidential Business Information (CBI) is commercial or financial
information that is both customarily and actually treated as private by
its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552),
CBI is exempt from public disclosure. If your comments responsive to
this NPRM contain commercial or financial information that is
customarily treated as private, that you actually treat as private, and
that is relevant or responsive to this NPRM, it is important you
clearly designate the submitted comments as CBI. Please mark each page
of your submission containing CBI as ``PROPIN.'' FAA will treat such
marked submissions as confidential under the FOIA, and they will not be
placed in the public docket of this NPRM. Submissions containing CBI
should be sent to the person in the FOR FURTHER INFORMATION CONTACT
section of this document. Any commentary FAA receives which is not
specifically designated as CBI will be placed in the public docket for
this rulemaking.
Availability of Rulemaking Documents
A copy of this NPRM, all comments received, any final rule, and all
background material may be viewed online at <a href="http://www.regulations.gov">www.regulations.gov</a> using
the docket number listed above. Electronic retrieval help and
guidelines are available on the website. It is available 24 hours each
day, 365 days each year. An electronic copy of this document may also
be downloaded from the Office of the Federal Register's website at
<a href="http://www.federalregister.gov">www.federalregister.gov</a> and the
[[Page 50739]]
Government Publishing Office's website at <a href="http://www.govinfo.gov">www.govinfo.gov</a>. A copy may
also be found at FAA's Regulations and Policies website at <a href="http://www.faa.gov/regulations_policies">www.faa.gov/regulations_policies</a>.
Copies may also be obtained by sending a request to the Federal
Aviation Administration, Office of Rulemaking, ARM-1, 800 Independence
Avenue SW, Washington, DC 20591, or by calling (202) 267-9677. Requests
must identify the docket or notice number of this rulemaking.
All documents FAA considered in developing this proposed rule,
including economic analyses and technical reports, may be accessed in
the electronic docket for this rulemaking.
Background
On June 26, 2026, FAA published a NPRM titled ``Transport Airplane
and Propulsion Certification Modernization'' in the Federal Register
(91 FR 38878; Notice No. 26-09). In that document, FAA proposed to
amend various airworthiness regulations to modernize certain
certification standards for transport category airplanes and propulsion
systems. This rule would be both deregulatory and relieving by reducing
the number of exemptions, special conditions, and equivalent level of
safety findings required during the certification process. FAA expects
that this proposal would reduce certification costs and time to certify
new and changed products for both industry and FAA while maintaining or
increasing the level of safety provided by the current regulations. FAA
proposes to remove Special Federal Aviation Regulation No. 109 from
part 25 and relocate certain of its requirements. Finally, this action
would address industry and National Transportation Safety Board
recommendations while also harmonizing FAA's regulations with
international standards. Commenters were instructed in the NPRM to
provide comments on or before August 25, 2026 (i.e., 60 days after the
date of the publication of the NPRM).
Since publication of the NPRM, FAA has received a request from the
Aerospace, Security and Defence Industries Association of Europe (ASD)
to extend the comment period by an additional sixty (60) days. This
organization requested more time to review the proposed rule, develop
comments and recommendations, and coordinate those comments among their
stakeholders.\1\
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\1\ The request is in the docket.
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Extension of Comment Period
FAA has reviewed, and partially grants, the request for an
extension of the comment period. FAA recognizes the importance of the
proposed rule, and that an extension would help commenters craft
complete and thoughtful responses. However, FAA finds that an
additional thirty (30) days will provide sufficient opportunity to
review the NPRM and provide comments.
[squf] Accordingly, the comment period for Notice No. 26-09 is
extended by thirty (30) days and will now close on September 24, 2026.
This will provide the public with a total of ninety (90) days to
conduct its review and submit comments to the docket. FAA does not
intend to approve additional requests to further extend the comment
period for this rulemaking.
Issued under authority provided by 5 U.S.C. 553(c), and 49 U.S.C.
106(f) and 44701, in Washington, DC.
Brandon Roberts,
Executive Director, Office of Rulemaking.
[FR Doc. 2026-16025 Filed 8-5-26; 8:45 am]
BILLING CODE 4910-13-P
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