ration and Development
OECS Organization of Eastern Caribbean States
OIC Organization of the Islamic Conference
OMVS Organization for the Development of the Senegal River Valley
OPANAL Agency for the Prohibition of Nuclear Weapons in Latin America
and the Caribbean
OPEC Organization of Petroleum Exporting Countries

PAHO Pan American Health Organization
PCA Permanent Court of Arbitration

SAARC South Asian Association for Regional Cooperation
SADCC Southern African Development Coordination Conference
SC Security Council (UN)
SELA Latin American Economic System
SPC South Pacific Commission
SPEC South Pacific Bureau for Economic Cooperation
SPF South Pacific Forum

TC Trusteeship Council (UN)
TDB Trade and Development Board (UN)

UDEAC Central African Customs and Economic Union
UEAC Union of Central African States
UN United Nations
UNCTAD UN Conference on Trade and Development
UNDP UN Development Program
UNESCO UN Educational, Scientific, and Cultural Organization
UNHCR UN High Commissioner for Refugees
UNICEF UN Children's Fund
UNIDO UN Industrial Development Organization
UPEB Union of Banana Exporting Countries
UPU Universal Postal Union (UN)

WCL World Confederation of Labor
WEU Western European Union
WFC World Food Council (UN)
WFTU World Federation of Trade Unions
WHO World Health Organization (UN)
WIPO World Intellectual Property Organization (UN)
WMO World Meteorological Organization (UN)
WP Warsaw Pact
WPC World Peace Council
WSG International Wool Study Group
WTO World Tourism Organization
----------------------------------------------------
Appendix C: Country Membership in International Organizations

This information is currently available only as a table in the
printed version of The World Factbook 1990. For the 1991 edition a new
textual format will be adopted that will greatly expand the breadth and
depth of coverage to include many more organizations with complete name,
acronym or abbreviation, date established, aim, and list of members.
----------------------------------------------------
Appendix D: Weights and Measures

Mathematical Notation

Mathematical Power Name
10 +18 or 1,000,000,000,000,000,000 one quintillion
10 +