In 1996, the gasoline additive MMT was brought into Canada by Ethyl Corporation, an American company. At the time, the Canadian federal government banned the importation of the additive. The American company brought a claim under NAFTA Chapter 11 seeking US$201 million,[34] from the Canadian government and the Canadian provinces under the Agreement on Internal Trade ("AIT"). The American company argued that their additive had not been conclusively linked to any health dangers, and that the prohibition was damaging to their company. Following a finding that the ban was a violation of the AIT,[35] the Canadian federal government repealed the ban and settled with the American company for US$13 million.[36] Studies by Health and Welfare Canada (now Health Canada) on the health effects of MMT in fuel found no significant health effects associated with exposure to these exhaust emissions. Other Canadian researchers and the U.S. Environmental Protection Agency disagree with Health Canada, and cite studies that include possible nerve damage.[37]