Action
Notice of availability and request for comments.
Summary
This document provides the public with notice that, on December 11, 2024, the National Railroad Passenger Corporation (Amtrak) submitted a request for amendment (RFA) to its Positive Train Control Type Approval and System Certification in order to add Amtrak AMT-27, which includes instructions for testing signal apparatuses and signal systems. As this RFA may involve a request for FRA's approval of proposed material modifications to an FRA-certified positive train control (PTC) system, FRA is publishing this notice and inviting public comment on Amtrak's RFA to its Positive Train Control Type Approval and System Certification.