The peso oro is the currency of the Dominican Republic. Its symbol is "$", with "RD$" used when distinction from other pesos (or dollars) is required; its ISO 4217 code is "DOP". Each peso is divided into 100 centavos, for which the ¢ symbol is used. It is the only currency which is legal tender for all monetary transactions, whether public or private, in the Dominican Republic.
The first Dominican peso was introduced in 1844. It replaced the Haitian gourde at par and was divided into 8 reales. The Dominican Republic decimalized in 1877, subdividing the peso into 100 centavos. A second currency, the franco, was issued between 1891 and 1897 but did not replace the peso. However, in 1905, the peso was replaced by the U.S. dollar, at a rate of 5 pesos to the dollar. The peso oro was introduced in 1937 at par with the U.S. dollar, although the dollar continued to be used alongside the peso oro until 1947.
The United States dollar is used as a reserve currency by the Dominican Central Bank. Also, when convened by both parties, both U.S. dollars and the euro can be used in private transactions (this applies mostly in tourism-related activities). This was most true during the drastic inflationary period of 2003–2004.