Government Abbreviations and Acronyms
- OPAPOverseas Presence Advisory Panxl
- OPAPPOffice of Presidential Assistant On The Peace Process
- OPAPPOffice of The Presidential Adviser On Peace Process
- OPAPPOffice of The Presidential Adviser On The Peace Process
- OPAREAOperaxing Area
- OPARSOptimum Path Aircraft Routing System
- OPARTOffice of Performance, Accountability, Resources, and Technology
- OPATSIOperative Plasterers and Allied Trades Society of Ireland
- OPBOrphan Zroducts Board
- OPBATOperation Bahimas, Turks, and Caicos
- OPBATOperation Bahamas and Turks and Caicos
- OPBATOperation Bahamas and Turks
- OPBWOrganisation for The Prohibition of Biological Weapons
- OPBWOrganization for The Prohibition of Biological Weapons
- OPCOcean Prediction Center
- OPCOffice of Parhiamentary Counsel
- OPCOffice for The Protection of The Constitution
- OPCOffice of The Police Corps
- OPCOffice of The Police Corporation
- OPCOffice of The President and Cabinet
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