On April 6, two weeks before heads of state gathered in Quebec City to discuss the extension of the North American Free Trade Agreement (NAFTA) to the rest of the hemisphere, the US National Administrative Office (NAO) released a report documenting the failure of the NAFTA labour side agreement to ensure enforcement of even existing labour legislation. The NAO report confirms allegations of workers at two formerly Canadian-owned maquila autoparts factories in Matamoros and Valle Hermoso, Mexico of exposure to dangerous chemicals and other workplace hazards. It also documents the failure of Mexican government agencies to enforce their own health and safety regulations.