The Haitian Senate approved legislation allowing exile President Jean-Bertrand Aristide to grant amnesty to leaders of the 1991 coup that toppled him.
The United States will forcibly remove military leader Raoul Cedras and members of his government if they do not leave office by next Saturday, U.S. officials said.
About 5,000 pro-democracy Haitians marched in Port-au-Prince to army headquarters to demand Lt. Gen. Cedras's departure.
Paramilitary violence continued in Cite Soleil, a pro-Aristide stronghold and one of the capital's worst slums. The U.S. military said American troops were not deployed there.
The number of U.S. troops in Haiti has dropped slightly to 19,000 and should be at 15,000 by the end of October, a Pentagon official said. He anticipated the number to be about 6,000 in four to six months when the U.N. takes over.
CIA Director James Woolsey denied a report that U.S. intelligence agencies helped establish the paramilitary group FRAPH.