| A | Bureau of Administration (Department of State) | IT | Information Technology |
| AID | Agency for International Development | L | Office of the Legal Adviser (Department of State) |
| A/IM | Information Management (Department of State) | LEA | Local Educational Agency |
| APEC | Asia Pacific Economic Cooperation Forum | MAI | Multilateral Agreement on Investment |
| ATA | Anti-terrorism Assistance | M/CIO | Chief Information Officer (Department of State) |
| ATF | Bureau of Alcohol, Tobacco and Firearms (Treasury) | M/FLO | Family Liaison Office (Department of State) |
| BIT | Bilateral Investment Treaty | M/MED | Office of Medical Services (Department of State) |
| CA | Bureau of Consular Affairs (Department of State) | M/P | Office of Management Policy and Planning (Department of State) |
| CDC | Centers for Disease Control (HHS) |
NADR |
Nonproliferation, Anti-terrorism, Demining, and Related Programs |
| CIA | Central Intelligence Agency | NEC | National Economic Council |
| CPM | Civilian Personnel Management | NIS | New Independent States |
| DEA | Drug Enforcement Administration (Department of Justice) | NGO | Nongovernmental Organization |
| DLEA | Drug Law Enforcement Agency | NOAA | National Oceanic and Atmospheric Administration (Department of Commerce) |
| DOC | Department of Commerce | NSC | National Security Council |
| DOD | Department of Defense | OBO | Overseas Buildings Operations (Department of State) |
| DOE | Department of Energy | OECD | Organization for Economic Cooperation and Development |
| DOJ | Department of Justice | OES | Bureau of Oceans, Environment, and Scientific Affairs (Department of State) |
| DRL | Bureau of Democracy, Human Rights and Labor (Department of State) | OIG | Office of The Inspector General (Department of State) |
| DS | Bureau of Diplomatic Security (Department of State) | OMB | Office of Management and Budget |
| DTS-PO | Diplomatic Telecommunications Service - Program Office (Department of State) | ONDCP | Office of National Drug Control Policy |
| E/CBA | Office of Business Affairs (Department of State) | OPIC | Overseas Private Investment Corporation |
| EB | Bureau of Economic and Business Affairs (Department of State) | OSM | Overseas Staffing Model |
| ECOWAS | Economic Community of West African States | PA | Bureau of Public Affairs (Department of State) |
| ECOMOG | Economic Community of West African States Monitoring Group | PER | Bureau of Personnel (Department of State) |
| EPA | Environmental Protection Agency | PVO | Private Voluntary Organization |
| ESA | Emergency Security Appropriation | Prepcom | Preparatory Committee |
| ESF | Economic Support Funds | Pol-Mil | Political and Military |
| EUR | Bureau of European and Eurasian Affairs (Department of State) | PRM | Bureau of Population, Refugees and Migration (Department of State) |
| Ex-Im | Bank Export-Import Bank | RM | Bureau of Resource Management |
| FAA | Federal Aviation Administration (Department of Transportation) | RSO | Regional Security Officer |
| FBI | Federal Bureau of Investigation (Department of Justice) | S/CT | Coordinator for Counterterrorism (Department of State) |
| FBO | Foreign Buildings Operations (Department of State) | SEED | Southeast European Development |
| FMP | Bureau of Finance and Management Policy (Now RM - Office of Resource Management) (Department of State) | S/EEOCR | Office of Equal Employment Opportunity and Civil Rights (Department of State) |
| FSA | Freedom Support Act | S/RPP | Secretary's Office of Resources, Plans, and Policy (Department of State) |
| FSC | Financial Service Center | S/S-O | Operations Center (Department of State) |
| FSI | Foreign Service Institute (Department of State) | T | Under Secretary for Arms Control and International Security (Department of State) |
| G | Under Secretary For Global Affairs (Department of State) | TDA | Trade and Development Agency |
| GAO | General Accounting Office | UN | United Nations |
| GCC | Gulf Cooperation Council | USAID | U.S. Agency for International Development |
| GDP | Gross Domestic Product | USDA | U.S. Department of Agriculture |
| H | Bureau of Legislative Affairs (Department of State) | USG | U.S. Government |
| HHS | Department of Health and Human Services | USOECD | Mission to the Organization for Economic Cooperation and Development |
| ICASS | International Cooperative Administrative Support Services | USTR | United States Trade Representative |
| IDP | Individual Development Plan Internally Displaced Person |
USUN | U.S. Mission to the United Nations |
| IEA | International Energy Agency | VWPP | Visa Waiver Pilot Program |
| IFI | International Financial Institution | WHA | Bureau of Western Hemisphere Affairs (Department of State) |
| INL | Bureau of International Narcotics and Law Enforcement Affairs (Department of State) | WMD | Weapons of Mass Destruction |
| INR | Bureau of Intelligence and Research (Department of State) | WTO | World Trade Organization |
| INS | Immigration and Naturalization Service (Department of Justice) | ||
| IO | Bureau of International Organization Affairs (Department of State) | ||
| IPMS | Integrated Personnel Management System (Department of State) | ||
| ILMS | Integrated Logistics Management System (Department of State) |
