CTBTO: Preparation commission for the Nuclear-Ban-Treaty Operation
CY: calendar year
DC: developed country
DDT: dichloro-diphenyl-trichloro-ethane
Desertification: United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa
DIA: United States Defense Intelligence Agency
DSN: Defense Switched Network
DST: daylight savings time
DWT: deadweight ton
EAC: East African Community