OMAO's research and survey ships comprise the largest fleet of federal research ships in the nation. Ranging from large oceanographic research vessels capable of exploring the world’s deepest ocean, to smaller ships responsible for charting the shallow bays and inlets of the United States, the fleet supports a wide range of marine activities including fisheries research, nautical charting, and ocean and climate studies. OMAO’s aircraft operate throughout the world providing a wide range of capabilities including hurricane reconnaissance and research, marine mammal and fisheries assessment, and coastal mapping. NOAA aircraft carry scientists and specialized instrument packages to conduct research for NOAA’s missions. Composed of civilians and officers of the NOAA Commissioned Officer Corps, OMAO also manages the NOAA Diving Program, NOAA Small Boat Program and NOAA Aviation Safety Program.