The U.S., Canada, and Mexico signed this trade pact on Dec. 17, 1992, though it didn't go into effect until Jan. 1, 1994
The agreement, 
which was completed in August, is scheduled to take effect on Jan. 1, 1994, and 
would establish the largest trading bloc in the world with $6 trillion in... [DOC] [TLE] NAFTA's Impact on U.S. Workers | Economic Policy Institute [PAR] Dec 9, 2013 ...