MIL-W-89500 (NOTICE-2), MILITARY SPECIFICATION: WORLD MAGNETIC MODEL (WMM) (31-MAR-2004) [S/S BY MIL-PRF-89500A]

MIL-W-89500 (NOTICE-2), MILITARY SPECIFICATION: WORLD MAGNETIC MODEL (WMM) (31-MAR-2004) [S/S BY MIL-PRF-89500A]., The purpose of this notice is to inform users of the change in name of the preparing activity from the Defense Mapping Agency (DMA) to the National Geospatial-Intelligence Agency (NGA).