Central America-4 passport
The Central America-4 passport is a common-design passport issued by the Central America-4 Border Control Agreement member states. Although the design had been in use by Nicaragua and El Salvador since the mid-1990s, it became the norm for the CA-4 in January 2006. The main features are the navy blue cover with the words "América Central" or "Centroamérica" and a map of Central America, with the territory of the issuing country highlighted in gold. This substitutes one map for four national symbols.
