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Notice of availability and request for comments.

This document provides the public with notice that on August 29, 2023, Trinity Railway Express (TRE) submitted a request together with the Silver Line (SLVR) to field test trains on TRE's positive train control (PTC)-equipped territory, which is equipped with the Interoperable Electronic Train Management System (I-ETMS). FRA is publishing this notice and inviting public comment on TRE and SLVR's joint request to test I-ETMS.

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