NAFTA allows companies to shed light on antiquated regulations. The advantages and disadvantages of MMT are contested1, and the Canada's grounds for prohibitions on the water exportation that Sun Belt wanted to do were questionable1. Environmental protection is necessary, but should be reasonable; if regulations are preventing business for no good reason, those regulations should be reconsidered.  1  "&gt; Jim Kerr, "Auto Tech: MMT: the Controversy Over this Fuel Additive Continues," March 10, 2004, &lt;