The FRA is requiring frequent progress reports, but allowed RTD to open its B Line as originally scheduled on July 25, 2016, because the B Line only has one at-grade crossing along its current route that is not designated to be a quiet zone.
Due to a specific exemption, the FRA allowed RTD to open its B Line according to its original schedule of July 25, 2016, despite requiring regular progress reports. This exception pertained to at-grade crossings that were not designated as quiet zones.