MIL-STD-2045/44500 (NOTICE 3), DEPARTMENT OF DEFENSEINTERFACE STANDARD: TACTICAL COMMUNICATIONS PROTOCOL 2 (TACO2) FOR THE NATIONAL IMAGERY TRANSMISSION FORMAT STANDARD (31 MAR 2004)., The purpose of this notice is to inform users of the change in preparing activity for this standardto the National Geospatial-Intelligence Agency (NGA).