This is a Federal Railroad Administration notice of availability and request for public comment on TEXRail's (TEX) Request for Amendment (RFA) to its Positive Train Control Safety Plan (PTCSP), Version 2.0, submitted October 31, 2024. TEX seeks FRA approval to reclassify its Interoperable Electronic Train Management System (I-ETMS) as a mixed PTC system under 49 CFR 236.1015(e). This is a procedural regulatory notice, not a NEPA document; no environmental impacts or mitigations are analyzed.12