Compensation has been agreed for the thousands of people caught up in the aftermath of the attacks on the World Trade Center in New York in September 2001.
The BBC reports city officials have agreed to pay up to $US657.5 million to thousands of rescue and clean-up workers at the Ground Zero site.
The settlement would compensate more than 10,000 plaintiffs who say they were made sick by dust from the collapsed towers.
The toxic cloud contained particles of asbestos, lead, glass and cement.
The deal, which comes after years of legal argument, needs formal approval by a judge and the victims.
At least 95% of the plaintiffs must approve the deal for it to take effect.
The money would come from a federally financed insurance fund of almost $US 1 billion that New York City controls.