S
SAARC
South Asian Association for Regional Cooperation
SACU
Southern African Customs Union
SACEP
South Asia Co-operative Environment Programme
SADC
Southern African Development Community
SCO
Shanghai Cooperation Organization
SAFE
South African Far East Cable
SECI
Southeast European Cooperative Initiative
SHF super-high-frequency
Ship Pollution
Protocol of 1978 Relating to the International Convention for the
Prevention of Pollution From Ships, 1973 (MARPOL)
SICA
Central American Integration System
Sparteca
South Pacific Regional Trade and Economic Cooperation Agreement
SPC
Secretariat of the Pacific Communities
SPF
South Pacific Forum
sq km square kilometer
sq mi square mile