 On 13 September 1918, "Pennsylvanian" was transferred to the U.S. Navy at New York and commissioned USS "Pennsylvanian" (ID-3511) the same day.Assigned to the Navy's Naval Overseas Transportation Service (NOTS), "Pennsylvanian" loaded a general cargo and sailed for Brest, France, on 30 September.She arrived there on 15 October and sailed for La Pallice the next day, where she unloaded her cargo before departing for New York on 5 November.