Six Technical Services found themselves part of Army Service Forces when they were grouped in 1942: the Corps of Engineers, Signal Corps, Ordnance Department, Quartermaster Corps, Chemical Corps and Medical Corps. A seventh technical service, the Transportation Corps, was established as the Transportation Division on 28 February 1942 under Executive Order 9082. It was renamed the Transportation Service in April 1942 and became a corps in its own right on 31 July 1942. The Transportation Corps took over control of the ports of embarkation, regulating points and railways.