Formerly the Quickbus 40, the line was discontinued in June 2017 as part of the BaltimoreLink system rebranding along with the other "Quickbus" limited-stop routes.
The line that was formerly designated as the Quickbus 40 was discontinued in June 2017 as part of a larger overhaul of the BaltimoreLink system, which also involved redesignating other "Quickbus" routes.