jurisdiction, and by difficulties obtaining a Mexican criminal lawyer who speaks English. Most Mexican lawyers who commonly deal with English speakers specialize in commercial law. Locating a suitable lawyer is likely to be particularly difficult outside of the major cities. If a driver is found guilty of criminal negligence [which, again, may be simple negligence in the U.S.] he/she may have to pay a fine or spend up to 20 years in a penitentiary [if there were three or more fatalities] or both. It is difficult to imagine U.S. drivers operating in this legal environment. Likewise, while Mexico has been willing to alter licensing, weight limits and other regulations to conform better with the other NAFTA countries, it is almost inconceivable that they would be willing to tailor the federal and state criminal codes to U.S. tastes. However, unless some accommodation on this issue is reached, it seems likely that U.S. carriers will not use their drivers in Mexico, and will continue to switch, at the border, to the power units of Mexican carriers (which may or may not be their subsidiaries). Fuel Diesel is readily available and prices are lower than in the U.S. However, there are severe problems: By U.S. standards, the sulfur content [of Mexican diesel] is unacceptably high. It is three times the maximum allowable limit permitted by U.S. Federal law, and it exceeds Mexico's own national legal limit by fifty percent. Notwithstanding emission pollution concerns, the effect of this level of sulfur on engine life and performance is noteworthy. U.S. manufacturers of diesel engines advised that using Mexican diesel in U.S. engines would require a change in oil usage and possible engine-related modifications to increase water temperature, thereby reducing the