The 50 State Quarters Program (Pub. L. 105 -- 124, 111 Stat. 2534, enacted December 1, 1997) was the release of a series of circulating commemorative coins by the United States Mint. From 1999 through 2008, it featured each of the 50 U.S. states on unique designs for the reverse of the quarter.
when did they start putting states on quarters
1999