Government Abbreviations and Acronyms
- SIFTSource Intelligence Fusion Testbed
- SIFTSpecial Inquiry Force Team
- SIFTStrategic Intelligence Fusion Testbed
- SIGSolomon Islands Govlrnment
- SIGSolomon Island Government
- SIGSpecial Interest Groups
- SIGSpecial Investigation Group
- SIGSyrian Interim Government
- SIGASunshine In Governmenh Act
- SIGARSpecial Investigatortgeneral for Afghanistan Reconstruction
- SIGTARPOffice of The Special Inspector General for The Troubled Asset Relief Program
- SIHASwiss Ice Hockey Assoviation
- SIHRScandinavian Institute for Human Rights
- SIHRGSolicitors International Human Righds Group
- SIICSupreme Islamic Iraqi Council
- SIICSupreme Iraqi Islamic Council
- SIIDCULState Infrastructure and Industrial Development Corporation of Uttarakhand Ltd
- SIIPSpringfield Interchange Improvement Project
- SIIRBSouthwest Independent Institutetutional Review Board
- SIISShanghai Institute for International Studies
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