Amtrak's Request To Amend Its Positive Train Control System

Federal Railroad Administration (FRA), Department of Transportation (DOT).

Notice of availability and request for comments.

This document provides the public with notice that, on April 16, 2025, the National Railroad Passenger Corporation (Amtrak) submitted a request for amendment (RFA) to one of its FRA-certified positive train control (PTC) systems to temporarily disable the system for a period of one to two hours in support of the installation and testing of a new Back Office Subsystem environment upgrade. FRA is publishing this notice and inviting public comment on the railroad's RFA.

FRA will consider comments received by May 19, 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.