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Notice of availability and request for comments.

This document provides the public with notice that on July 25, 2023, North County Transit District (NCTD) submitted a request to field test its new Crash Energy Management (CEM) Bi-Level cab cars that have been equipped with NCTD's Interoperable Electronic Train Management System (I-ETMS) technology. FRA is publishing this notice and inviting public comment on NCTD's request to test its positive train control (PTC) system.

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