The obverse design retains the central figure of the "Sacagawea" design first produced in 2000 with the inscriptions LIBERTY and IN GOD WE TRUST. The reverse design changes each year to honor an important contribution of Indian tribes or individual Native Americans with the inscriptions $1 and UNITED STATES OF AMERICA. Reverse designs for the Native American $1 Coin are selected by the Secretary of the Treasury after consulting with the U.S. Senate Committee on Indian Affairs, the Congressional Native American Caucus of the U.S. House of Representatives, the Commission of Fine Arts and the National Congress of American Indians, and after public review by the Citizens Coinage Advisory Committee. Like Presidential $1 Coins, Native American $1 Coins have a distinctive edge, are golden in color, and feature edge-lettering of the year, mint mark and E PLURIBUS UNUM. In 2009, the United States Mint began minting and issuing $1 coins featuring designs celebrating the important contributions made by Indian tribes and individual Native Americans to the history and development of the United States. The Native American $1 Coin Program is authorized by the Native American $1 Coin Act