On June 17, 2012, route C8 was rerouted to divert off the intersection of Adelphi Road and directly enter the National Archives Building of College Park, MD, replacing route R3 which was shorten to operate between Greenbelt and Price Georges Plaza station.. C8 also went through a minor route change to divert off the intersection of New Hampshire Avenue (MD 650) into the White Oak FDA/FRC Building, on weekdays, in order to replace the K6 Metrobus route's diversion into the White Oak FDA/FRC Building on weekdays.