The Central American Integration System maintained offices in 2000.
== Members and observers ===== Regional observers ====== Extra-regional observers ===== Economic integration ===== Unified Central American currency ===The Central American Bank for Economic Integration has not introduced its own common currency, and dollarization is possible
The Charter of San Salvador was ratified by all Central American governments, and on 18 August 1955 their foreign ministers attended its first meeting in Antigua Guatemala

