It is the reference frame used by the U.S. Department of Defense (DoD) and is defined by the National Geospatial-Intelligence Agency (NGA) (formerly the Defense Mapping Agency, then the National Imagery and Mapping Agency).
Awen eqqal ilan adiriš s Department of Defense wan Amrik (DoD) exdam siris tolas ikfe National Geospatial-intelligence Agency (NGA) almaɣna (a eruwan Defene Mapping Agency dihen National Imagery and Mapping Agency)