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Notice of availability and request for comments.

This document provides the public with notice that on December 2, 2021, the Peninsula Corridor Joint Powers Board (Caltrain) submitted a document entitled, "Crossing Optimization Project: Test Request," Revision 1, dated November 29, 2021, to FRA. Caltrain asks FRA to approve its request so that Caltrain may field test its Crossing Optimization on track that has been equipped with positive train control (PTC) technology.

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