North American Free Trade Agreement (NAFTA).

North American Free Trade Agreement (NAFTA) established a free-trade zone in North America. The trade was signed in 1992 by Canada, Mexico, and the United States and it was a continuation of the 1989 Canada-U.S. Free Trade Agreement. NAFTA went into effect on January 1, 1994 and instantaneously lowered tariffs on the majority of goods produced by the signatory nations. It also called for the gradual elimination, over a period of 15 years, of most remaining barriers to cross-border …

…MEXICO PORTS OF ENTRY Commercial zones, unless otherwise defined, are determined through a formula dependent upon the population of the municipality (49 CFR 372, Subpart B). The commercial zones for all United States/Mexico ports of entry allow for transportation from the corporate limits of the municipality as follows: BORDER CROSSING into the U.S.A http://ai.fmcsa.dot.gov/International/border ( Federal motor carrier safety administration) http://www.fmcsa.dot.gov/cross-border/nafta-rules/new-mexrule.htm