Caribbean guilder
The Netherlands Antillean guilder will continue to circulate and plans to implement the Caribbean guilder will not be finalized until the islands' Central Bank situation is resolved. The new currency will be abbreviated CMg (for Curacao, Sint Maarten guilder) and would be pegged to the United States dollar at the same exchange rate as the Netherlands Antillean guilder (1 USD = 1.79 NAg = 1.79 CMg). As the BES islands (Bonaire, Sint Eustatius and Saba) adopted the U.S. dollar directly on 1 January 2011, the introduction of the CMg would mean the end of the circulation of the Netherlands Antillean guilder.
Eastern Caribbean dollar
The other two associate members of the OECS do not use the Eastern Caribbean dollar as their official currency: the British Virgin Islands and Martinique. The British Virgin Islands were always problematic for currency purposes due to their proximity to the Danish West Indies which became the US Virgin Islands in 1917. Officially, the British Virgin Islands used to use sterling, but in practice the situation was more complicated and involved the circulation of francs and U.S. dollars. In 1951, the British Virgin Islands adopted the British West Indies dollar which at that time operated in conjunction with the sterling coinage, and in 1959 they changed over officially to the U.S. dollar.