Federal Railroad Administration April 26, 2023 – Federal Register Recent Federal Regulation Documents

This document provides the public with notice that, on April 11, 2023, the Massachusetts Bay Transportation Authority (MBTA) submitted a request to field test its trains that have been equipped with MBTA's Advanced Civil Speed Enforcement System II (ACSES II) technology on its South Coast Rail commuter rail lines. MBTA states that the tests will be performed and operation verified for all ACSES II PTC functions. FRA is publishing this notice and inviting public comment on MBTA's request to test its PTC system.