National Oceanic & Atmospheric Administration - NOAA
The National Oceanic and Atmospheric Administration or NOAA as it is more commonly known dates back to 1807 when it surveyed the US coastlines.
Nowadays NOAA provides weather forecasts, storm warnings, climate monitoring and oceanic research.
NOAA does have a diving arm that focuses on research and scientific endevours, teams of divers operating remotely at sea are often them norm.
NOAA is not an 'open-door' organisation that ordinary divers can join and is closed to the general public.
The NOAA Diver Hierarchy
Advanced Working Diver