International Air Transport Association | International Air Transport Association |
International Amateur Radio Union | International Amateur Radio Union |
International Association of Athletics Federations | International Association of Athletics Federations |
International Association of Lighthouse Authorities | International Association of Lighthouse Authorities |
International Association of Nitrox and Technical Divers | International Association of Nitrox and Technical Divers |
International Baccalaureate | International Baccalaureate |
International Bank Account Number | International Bank Account Number |
International Civil Aviation Organization | International Civil Aviation Organization |
International Classification of Diseases for Oncology | International Classification of Diseases for Oncology |
International Color Consortium | International Color Consortium |
International Commission on Stratigraphy | International Commission on Stratigraphy |
International Correspondence Chess Federation | International Correspondence Chess Federation |
International Documentary Filmfestival Amsterdam | International Documentary Film Festival Amsterdam |
International Electrotechnical Commission | International Electrotechnical Commission |
International Fellowship of Reconciliation | International Fellowship of Reconciliation |