A-A, African and Asian
AAUN, American Association for the United Nations
ACABQ, Advisory Committee on Administrative and Budgetary Questions, United Nations
ACDA, Arms Control and Disarmament Agency
ACDA/DD, Office of the Deputy Director, Arms Control and Disarmament Agency
ACDA/IR, Office of the Assistant Director for International Relations, Arms Control and Disarmament Agency
AEC, Atomic Energy Commission
AES, Adlai E. Stevenson
AF, Bureau of African Affairs, Department of State
AFRTS, Armed Forces Radio and Television Service
AICBM, anti-intercontinental ballistic missile
AID, Agency for International Development
Amb, Ambassador
AmEmbassy, American Embassy
ARA, Bureau of Inter-American Affairs, Department of State
ARPA, Advanced Research Projects Agency
ASAF, Asian-African, Asia-Africa
AT&T, American Telephone and Telegraph Company

BBC, British Broadcasting Corporation
BMEWS, Ballistic Missile Early Warning System
BNSP, basic national security policy

CA, circular airgram
CBS, Columbia Broadcasting System
CCF, Cooperative Commonwealth Federation (Canadian political party)
CENTO, Central Treaty Organization
CEPT, European Conference of Postal and Telecommunications Administrations
ChiComs, Chinese Communists
ChiRep, Chinese representation
CIA, Central Intelligence Agency
CINCCARIB, Commander in Chief, Caribbean
cirtel, circular telegram
comite, committee
cmte, committee
CORE, Congress on Racial Equality
COSPAR, Committee on Space Research
CTF, Commander Task Force

DCI, Director of Central Intelligence
del, delegation
DelOff, delegation officer
Depcirtel, Department of State circular telegram
Dept, Department
Deptel, Department of State telegram
DIA, Defense Intelligence Agency
DOD, Department of Defense

ECOSOC, Economic and Social Council, United Nations
EE, Eastern Europe
ELDO, European Launcher Development Organization
ELINT, electronic intelligence
ENDC, Eighteen-Nation Disarmament Conference
ERM, Edward R. Murrow
ESRO, European Space Research Organization
EUR, Bureau of European Affairs, Department of State
ExtAff, External Affairs

FAA, Federal Aviation Administration
FAO, Food and Agricultural Organization
FCC, Federal Communications Commission
FE, Bureau of Far Eastern Affairs, Department of State
FonMin, Foreign Minister, Foreign Ministry
FonOff, Foreign Office
FR, Federal Register
FRG, Federal Republic of Germany
FSO, Foreign Service officer
FSR, Foreign Service Reserve
FY, fiscal year
FYI, for your information

G, Deputy Under Secretary of State for Political Affairs
GA, United Nations General Assembly
GATT, General Agreement on Tariffs and Trade
GDR, German Democratic Republic
GNP, gross national product
GOP, Government of Portugal
GOT, Government of Turkey
G/PM, Office of the Deputy Assistant Secretary of State for Politico-Military Affairs
GPO, General Post Office, United Kingdom
GRC, Government of the Republic of China

HEW, Department of Health, Education and Welfare

I, Office of the Deputy Director, U.S. Information Agency
IAEA, International Atomic Energy Agency
IAS, Office of the Soviet Union and Eastern Europe, U.S. Information Agency
IASP, International Atmospheric Science Program
IAU, International Astronomical Union
IBRD, International Bank for Reconstruction and Development
ICA, International Cooperation Administration
ICAO, International Civil Aviation Organization
ICBM, intercontinental ballistic missile
ICC, International Control Commission
ICEM, Intergovernmental Committee for European Migration
ICJ, International Court of Justice
ICSU, International Council of Scientific Unions
ICWRY, International Conference for World Refugee Year
IGY, International Geophysical Year
ILC, International Law Commission
ILO, International Labor Organization
IMF, International Monetary Fund
IMG, Informational Media Guaranty
IMSP, International Meteorological Service Program
IMS, Motion Picture Service, U.S. Information Agency
INR, Bureau of Intelligence and Research, Department of State
IO, Bureau of International Organization Affairs, Department of State
IO/OIA, Office of International Administration, Bureau of International Organization Affairs, Department of State
IO/OES, Office of International Economic and Social Affairs, Bureau of International Organization Affairs, Department of State
IO/UNP, Office of United Nations Political and Security Affairs, Bureau of International Organization Affairs, Department of State; later Office of United Nations Political Affairs
IOP, Office of Policy and Plans, U.S. Information Agency
IPS, Press and Publications Service, U.S. Information Agency
IRBM, intermediate-range ballistic missile
IRI, Office of Research and Analysis, U.S. Information Agency
IRR, Research and Reference Service, U.S. Information Agency
IRS, Director of the Information Research Service, U.S. Information Agency
ISA, Office of International Scientific Affairs, Department of State
IT&T, International Telephone and Telegraph Corporation
ITU, International Telecommunications Union

JCS, Joint Chiefs of Staff

KW, kilowatt

L, Office of the Legal Adviser, Department of State
LA, Latin America or Latin American
LDCs, less-developed countries
L/SFP, Assistant Legal Adviser for Special Functional Problems, Department of State
L/UNA, Assistant Legal Adviser for United Nations Affairs, Department of State

M, Under Secretary of State for Political Affairs
MA, Mercury-Atlas
memcon, memorandum of conversation
MOA, Ministry of Aviation (United Kingdom)
MODS, Military Orbital Development System
MSTS, Military Sea Transport Service

NAACP, National Association for the Advancement of Colored People
NAC, North Atlantic Council
NACA, National Advisory Committee on Aeronautics
Narcom, UN Commission on Narcotic Drugs
NASA, National Aeronautics and Space Administration
NASC, National Aeronautics and Space Council
NATO, North Atlantic Treaty Organization
NCS, National Communications System
NEA, Bureau of Near Eastern and South Asian Affairs, Department of State
Niact, night action; communications indicator requiring attention by the recipient at any hour of the day or night
NMCC, National Military Command Center
NMCS, National Military Command System
NGO, non-governmental organization
NOA, new obligational authority
NRO, National Reconnaissance Office
NRP, National Reconnaissance Program NSAM, National Security Action Memorandum
NSC, National Security Council
NSF, National Science Foundation

OAS, Organization of American States
OCB, Operations Coordinating Board
OECD, Organization for Economic Cooperation and Development
OEEC, Organization for European Economic Cooperation
OEP, Office of Emergency Preparedness
OM/MS, Office of Management, Department of State
ONUC, United Nations Operations in the Congo
OST, Office of Science and Technology

P, Bureau of Public Affairs, Department of State
PAG, Personnel Advisory Group
PCC, Palestine Conciliation Commission
PCI, Partito Comunista Italiano (Italian Communist Party )
PFIAB, President's Foreign Intelligence Advisory Board
P.L., Public Law
POL, petroleum, oil, and lubricants
POLAD, political adviser
PSAC, President's Science Advisory Committee
PTT, Ministry of Posts, Telegraphs, and Telephones (France)
PX, post exchange

R&D, research and development
RCA, Radio Corporation of America
reftel, reference telegram
rep, representative
res(es), resolution(s)
RFE, Radio Free Europe
RG, Record Group
RIAS, Radio in the American Sector, West Berlin
RL, Radio Liberty
ROK, Republic of Korea
R-U, Ruanda-Urundi

S/AE, Office of the Special Assistant for Atomic Energy and Outer Space, Department of State
S/AL, Ambassador at Large
SANE, National Committee for a Sane Nuclear Policy
SAR, search and rescue
SC, Security Council, United Nations
SCA/ORM, Bureau of Security and Consular Affairs, Office of Refugee and Migration Affairs, Department of State
SCAR, Special Committee on Antarctic Research
SCI, Office of International Scientific Affairs, Department of State
SEATO, Southeast Asia Treaty Organization
Secdel, Secretary of State's delegation
Secto, series indicator for telegrams from the Secretary of State (or his delegation) at international conferences to the Department of State
SNAP, Systems for Nuclear Auxiliary Power
Sov, Soviet
S/P, Policy Planning Council, Department of State
SPA, Office of Southwest Pacific Affairs, Bureau of Far Eastern Affairs, Department of State
SPC, Special Political Committee, United Nations
SR, Southern Rhodesia
S/S, Executive Secretariat, Department of State
S/SA, Office of the Science Adviser, Department of State
SSR, Soviet Socialist Republic
SWA, Southwest Africa
SYG, Secretary-General of the United Nations

TC, Trusteeship Council, United Nations
TFX, Tactical fighter, experimental
TIAS, Treaties and International Agreements of the United States

UAM, Union Africaine et Malagache (African and Malagasy Union)
UAR, United Arab Republic
UCMJ, Uniform Code of Military Justice
U/FW, Special Assistant for Fisheries and Wildlife, Department of State
UK, United Kingdom
UKDel, United Kingdom Delegation at the United Nations
UN, United Nations
UNCTAD, United Nations Conference on Trade and Development
UNDA, United Nations Development Authority
UNEF, United Nations Emergency Force (in the Middle East)
UNESCO, United Nations Educational, Scientific and Cultural Organization
UNGA, United Nations General Assembly
UNHCR, United Nations High Commissioner for Refugees
UNICEF, United Nations Childrens' Fund
UNOC, United Nations Operations in the Congo
unodir, unless otherwise directed
UNRRA, United Nations Relief and Rehabilitation Administration
UNRWA, United Nations Relief and Works Agency for Arab Refugees from Palestine
UNTS, United Nations Treaty Series
UNTSO, United Nations Truce Supervision Organization
UNYOM, United Nations Observation Group in Yemen
UPU, Universal Postal Union
urtel, your telegram
USAF, United States Air Force
USC, United States Code
USDel, United States Delegation
USEP, United States Escapee Program
USG, United States Government
USGADel, United States Delegation to the UN General Assembly
USIA, United States Information Agency
USIB, United States Intelligence Board
USIS, United States Information Service
USNR, U.S. Naval Reserve
USOM, United States Operations Mission
USSR, Union of Soviet Socialist Republics
UST, United States Treaties and Other International Agreements
USUN, United States Mission at the United Nations

VIPs, very important persons
VOA, Voice of America
VUNC, Voice of the UN Command in Korea

WE, Western European
WHO, World Health Organization
WMO, World Meteorological Organization
WWW, World Weather Watch