The segment of C9's routing between the intersection of Randolph Road & Old Columbia Pike and intersection of Randolph Road & Tamarack Road in Fairland, MD, and C7 & C9's routing between the intersection of Randolph Road & Tamarack Road in Fairland, MD and intersection of Randolph Road & New Hampshire Avenue (MD 650) in Colesville, MD, was completely replaced by Montgomery County Ride On bus route 10.