The National Oceanic and Atmospheric Administration Commissioned Officer Corps, known informally as the NOAA Corps, is one of eight federal uniformed services of the United States, and operates under the National Oceanic and Atmospheric Administration (NOAA), a scientific agency overseen by the Department of Commerce. The NOAA Corps is made up of scientifically and technically trained officers. It is one of only two U.S. uniformed services – the other being the United States Public Health Service Commissioned Corps – that consists only of commissioned officers, with no enlisted or warrant officer ranks. The NOAA Corps primary mission is to monitor oceanic conditions, support major waterways, and monitor atmospheric conditions.