Action
Notice of availability and request for comments.
Summary
This document provides the public with notice that, on May 22, 2025, the Union Pacific Railway (UP) submitted a request for amendment (RFA) to its FRA-approved Positive Train Control Implementation Plan (PTCIP) seeking FRA's approval for a reduction in its positive train control (PTC) footprint due to a yard limit extension that does not require PTC implementation. As this RFA may involve 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 UP's RFA to its PTCIP.