The Cayman Islands dollar was introduced in 1972 ( 10 years after separation from Colony of Jamaica ), replacing the Jamaican dollar at par. Jamaican currency and Cayman Islands dollars both remained legal tender until 1 August 1972, when Jamaican currency ceased to be legal tender. The Cayman Islands dollar has been pegged to the United States dollar at 1 Cayman Islands dollar = 1.2 U.S. dollars since 1 April 1974, when the Currency Law of 1974 was enacted. In 1983, the 1974 law was repealed and replaced by the Currency Law Revised, which itself was replaced in 1997 by section 22 of the Monetary Authority Law. Under section 22 of the 2013 revision of the Monetary Authority Law, the value of the Cayman dollar in United States Dollars is determined by the Governor.