Who Is Using Reformulated Gasoline?
• The Clean Air Act requires the nine cities with the worst levels of ozone pollution to use reformulated gasoline. The cities include New York, Philadelphia, Hartford, Baltimore, Chicago, Milwaukee, Houston, San Diego, and Los Angeles. In addition, dozens of other cities are using reformulated gasoline voluntarily simply because it’s a convenient, inexpensive way to improve air quality. In all, about one-third of the gasoline in the country is reformulated.