Action
Notice of availability and request for comments.
Summary
This document provides the public with notice that, on October 12, 2024, the National Railroad Passenger Corporation (Amtrak) submitted a request for amendment (RFA) to its FRA-approved Positive Train Control Safety Plan (PTCSP) to install Construction Zone (CZ) transponders, which will result in the suspension of portions of its positive train control (PTC) system, to support the addition of Fitter Interlocking on the New Haven to Boston (NHB) line. This CZ is scheduled to be implemented December 7, 2024, for a duration not exceeding 30 days. 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 Amtrak's RFA to its PTC system.