Flown byUnited States Government ships subordinate to these services to distinguish them from ships subordinate to theUnited States Navy, with which they share a common ensign.
United States Bureau of Fisheries
( ? -1940)
United States Bureau of Navigation
( ? - 1946)
United States Coast and Geodetic Survey
(1899–1970)
United States Lighthouse Service
( ? - 1939)
Used by ships which engages in coastwise trade, or transport of passenger or goods between two local ports, in the Philippines.