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Notice of availability and request for comments.

This document provides the public with notice that, on April 25, 2022, the Alaska Railroad Corporation (ARRC) submitted a request to field test new functionality to improve the safety critical nature of existing functions, such as mandatory directive conveyance and confirmation, and conditional authorities, and a safety server that is being added in ARRC's PTC Office Segment to provide safety oversight of these new functions with the intent of improving the safety and efficiency of rail operations. FRA is publishing this notice and inviting public comment on the railroad's field test request.

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