Action
Notice of availability and request for comments.
Summary
This document provides the public with notice that on January 21, 2026, Brightline Florida (BLF) and Florida East Coast Railway (FECR) submitted a joint request for amendment (RFA) to their FRA- approved Positive Train Control Safety Plans (PTCSP) to implement a software update, Interoperable Electronic Train Management Systems (I- ETMS) Protect 77.0.4.0, to FECR and BLF'S locomotive fleets, corrections to the PTCSP and updates to line segment names. As this joint RFA may involve requests for FRA's approval of proposed material modifications to FRA-certified positive train control (PTC) systems, FRA is publishing this notice and inviting public comment on BLF and FECR's joint RFA to their PTCSPs.