[Federal Register Volume 90, Number 134 (Wednesday, July 16, 2025)]
[Notices]
[Pages 32060-32061]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-13330]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Railroad Administration
[Docket Number FRA-2010-0048]
Southern California Regional Rail Authority's Request to Amend
Its Positive Train Control Safety Plan and Positive Train Control
System
AGENCY: Federal Railroad Administration (FRA), Department of
Transportation (DOT).
ACTION: Notice of availability and request for comments.
-----------------------------------------------------------------------
SUMMARY: This document provides the public with notice that, on July 7,
2025, Southern California Regional Rail Authority (SCAX) submitted a
request for amendment (RFA) to its FRA-approved Positive Train Control
Safety Plan (PTCSP) and positive train control (PTC) system, seeking
FRA's approval to, as a result of updates made to its onboard PTC
software, modify its PTC braking algorithm. As this RFA involves a
request for FRA's approval of proposed material modifications to an
FRA-certified PTC system, FRA is publishing this notice and inviting
public comment on SCAX's RFA to its PTCSP.
DATES: FRA will consider comments received by August 5, 2025. FRA may
consider comments received after that date to the extent practicable
and without delaying implementation of valuable or necessary
modifications to a PTC system.
ADDRESSES:
Comments: Comments may be submitted by going to https://www.regulations.gov and following the online instructions for
submitting comments.
Instructions: All submissions must include the agency name and the
applicable docket number. The relevant PTC docket number for this host
railroad is Docket No. FRA-2010-0048. For convenience, all active PTC
dockets are hyperlinked on FRA's website at https://railroads.dot.gov/research-development/program-areas/train-control/ptc/railroads-ptc-dockets. All comments received will be posted without change to https://www.regulations.gov; this includes any personal information.
FOR FURTHER INFORMATION CONTACT: Gabe Neal, Staff Director, Signal,
Train Control, and Crossings Division, telephone: 816-516-7168, email:
[email protected].
SUPPLEMENTARY INFORMATION: In general, Title 49 United States Code
(U.S.C.) Section 20157(h) requires FRA to certify that a host
railroad's PTC system complies with Title 49 Code of Federal
Regulations (CFR) part 236, subpart I, before the technology may be
operated in revenue service. Before making certain changes to an FRA-
certified PTC system or the associated FRA-approved PTCSP, a host
railroad must submit, and obtain FRA's approval of, an RFA to its PTCSP
under 49 CFR 236.1021.
Under 49 CFR 236.1021(e), FRA's regulations provide that FRA will
publish a notice in the Federal Register and invite public comment in
accordance with 49 CFR part 211, if an RFA includes a request for
approval of a material modification of a signal or train control
system. Accordingly, this notice informs the public that, on July 7,
2025, SCAX submitted an RFA to its PTCSP for its Interoperable
Electronic Train Management System, which seeks FRA's approval to
modify its PTC braking algorithm. That RFA is available in Docket No.
FRA-2010-0048.
Interested parties are invited to comment on SCAX's RFA to its
PTCSP by submitting written comments or data. During FRA's review of
SCAX's RFA, FRA will consider any comments or data submitted within the
timeline specified in this notice and to the extent practicable,
without delaying implementation of valuable or necessary modifications
to a PTC system. See 49 CFR 236.1021; see also 49 CFR 236.1011(e).
Under 49 CFR 236.1021, FRA maintains the authority to approve, approve
with conditions, or deny a railroad's RFA to its PTCSP, at FRA's sole
discretion.
Privacy Act Notice
In accordance with 49 CFR 211.3, FRA solicits comments from the
public to better inform its decisions. DOT posts these comments,
without edit, including any personal information the commenter
provides, to https://www.regulations.gov, as described in the system of
records notice (DOT/ALL-14 FDMS), which can be reviewed at https://www.transportation.gov/privacy. See https://www.regulations.gov/privacy-notice for the privacy notice of
[[Page 32061]]
regulations.gov. To facilitate comment tracking, we encourage
commenters to provide their name, or the name of their organization;
however, submission of names is completely optional. If you wish to
provide comments containing proprietary or confidential information,
please contact FRA for alternate submission instructions.
Issued in Washington, D.C.
Carolyn R. Hayward-Williams,
Director, Office of Railroad Systems and Technology.
[FR Doc. 2025-13330 Filed 7-15-25; 8:45 am]
BILLING CODE 4910-06-P