Benelux: Benelux Economic Union
Biodiversity: Convention on Biological Diversity
BGN: United States Board on Geographic Names
BIS: Bank for International Settlements
BSEC: Black Sea Economic Cooperation Zone
C: Commonwealth
c.i.f.: cost, insurance, and freight
CACM: Central American Common Market
CAEU: Council of Arab Economic Unity
CAN: Andean Community of Nations