<Tr> <Th> HDI (2011) </Th> <Td> 0.868 very high </Td> </Tr> <Tr> <Td_colspan="2"> Website www.naftanow.org </Td> </Tr> <P> The North American Free Trade Agreement (NAFTA; Spanish: Tratado de Libre Comercio de América del Norte, TLCAN; French: Accord de libre - échange nord - américain, ALÉNA) is an agreement signed by Canada, Mexico, and the United States, creating a trilateral trade bloc in North America . The agreement came into force on January 1, 1994 . It superseded the Canada--United States Free Trade Agreement between the U.S. and Canada . </P> <P> NAFTA has two supplements: the North American Agreement on Environmental Cooperation (NAAEC) and the North American Agreement on Labor Cooperation (NAALC). </P>

​nafta member nations include those located in