Mexico took an additional step to clean up its air quality by announcing a program to boost production of gasoline with extremely low levels of sulfur. A major part of the plan includes constructing two refineries in central Mexico to produce gasolina Magna UBA (Ultra Bajo Contenido de Azufre), which should be available to the public in about three years. The effort to reduce harmful emissions has been sporadic in recent years, with authorities pushing stricter standards for automobiles in the country's three largest cities and also encouraging the use of cleaner fuels like ethanol. Even with the push toward cleaner fuels, Mexico still lags behind other countries in making hybrid cars available to its consumers, said a recent report published by the news wire CNN Expansion. Construction of new refining facilities scheduled in 2009 The push for cleaner air during the past decade has been led by Mexico City, which has greatly improved air quality by imposing tougher standards on motor vehicles. The Mexican Congress and President Felipe Calderon's administration have also taken steps to clean up the air in Mexico City, Guadalajara, and Monterrey by requiring that gasoline sold in the country's three largest metropolitan areas be oxygenated.
SourceMex. "Mexico Expects To Offer Ultraclean Gasoline by 2012." (2008). https://digitalrepository.unm.edu/la_energy_notien/36