World War I American Veterans Centennial Commemorative Coin Act - Directs the Secretary of the Treasury to: (1) mint and issue $1 silver coins to commemorate the centennial of the involvement of the United States in World War I, and (2) hold a competition and provide compensation for its winner to design the obverse and reverse of the coins.
Requires the design of such coins to be emblematic of the centennial of the involvement of the United States in World War I.
Permits the Secretary to issue such coins only during the period beginning on January 1, 2018, and ending on December 31, 2018.
Subjects the coin sales to a surcharge of $10 per coin, payable by the Secretary to the World War I Centennial Commission.