You draw benefits through (NAFTA) North American Free Trade Agreement between Canada,United States & Maxico.
This agreement :-
a) eliminates barriers to trade in, and facilitate the cross-border movement of, goods and services between the territories of the Parties; (Canada,USA,Maxico)
b) promotes conditions of fair competition in the free trade area;
c) increases substantial investment opportunities in the territories of the Parties;
d) provides adequate and effective protection and enforcement of intellectual property rights in each Party's territory;