Predecessors from George Washington to Ronald Reagan will now be featured on new dollar coins.
Lawmakers hope the coins will rake in money for the government and spark more interest in the Sacagawea dollar coins, which aren't used much.
A US Mint spokeswoman says the 50-state quarter program brought
in about four (b) billion dollars in revenue by the time it reached its midpoint. Lawmakers hope the presidential dollars will be as popular.
Senator John Sununu, who sponsored the bill, says the coins will be "a valuable educational tool" and raise interest in America's former leaders.
The front of the coins would depict former presidents who have been dead more than two years. The backs would show the Statue of Liberty. Four coins would come out a year, starting in 2007.
The bill also creates a ten-dollar gold piece featuring former first ladies.