This document provides the public with notice that, on October 3, 2025, National Railroad Passenger Corporation (Amtrak) submitted two requests for amendment (RFA) to its FRA-certified positive train control (PTC) system, the Interoperable Electronic Train Management System (I-ETMS), in order to perform stability and reliability upgrades to its I-ETMS back office subsystem. FRA is publishing this notice and inviting public comment on the railroad's RFAs to its PTC system.
This is a notice published in the Federal Register by Transportation Department, Federal Railroad Administration. Notices communicate information, guidance, or policy interpretations but may not create new binding obligations.
This document is classified as a notice. It may or may not create enforceable regulatory obligations depending on its specific content.
Notice of availability and request for comments.
FRA will consider comments received by November 18, 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.
| Document Number | 2025-19691 |
| FR Citation | 90 FR 48797 |
| Type | Notice |
| Published | Oct 29, 2025 |
| Effective Date | - |
| RIN | - |
| Docket ID | Docket Number FRA-2010-0029 |
| Pages | 48797–48798 (2 pages) |
| Text Fetched | No |
| Part | Name | Agency |
|---|---|---|
| No linked CFR parts | ||
| Type | Proposed | Final | Method | Conf |
|---|---|---|---|---|
| No paired documents | ||||
| Doc # | Type | Title | Published |
|---|---|---|---|
| 2026-00395 | Notice | Amtrak's Request To Amend Its Positive T... | Jan 13, 2026 |
| 2025-08901 | Notice | Amtrak's Request To Amend Its Positive T... | May 19, 2025 |
| 2025-08906 | Notice | Amtrak's Request To Amend Its Positive T... | May 19, 2025 |
| 2025-07201 | Notice | Amtrak's Request To Amend Its Positive T... | Apr 28, 2025 |
| 2024-30601 | Notice | The National Railroad Passenger Corporat... | Dec 23, 2024 |
| 2024-28284 | Notice | The National Railroad Passenger Corporat... | Dec 3, 2024 |
| 2024-24778 | Notice | The National Railroad Passenger Corporat... | Oct 24, 2024 |
| 2024-19190 | Notice | Amtrak's Request To Amend Its Positive T... | Aug 27, 2024 |
| 2024-15270 | Notice | The National Railroad Passenger Corporat... | Jul 11, 2024 |
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