The acronyms covered in this part of the website are among those most commonly found in Department of State communications, as well as in daily conversation. The list draws heavily from more detailed information on the websites listed to the left.
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OBC : Overseas Briefing Center, Foreign Service Institute
OBO: Overseas Buildings Operations (formerly FBO)
OCS : Overseas Citizen Services
ODC : Office of Defense Cooperation
OES : Bureau of Oceans and International Environmental and Scientific Affairs, Department of State
OIC : Officer in charge
OIG : Office of the Inspector General, Department of State
OIOS : Office of Internal Oversight Service
OMB : Office of Management and Budget
OMC : Office of Military Cooperation
OMS : Office Management Specialist; formerly Foreign Service Secretary
ORA: Office of Regional Affairs
ORE : Official residence expense
OSAC : Overseas Schools Advisory Council
OSPB : Overseas Security Policy Board