The Nissan Sentra CA sedan received the 2000 Governor’s Environmental and Economic Leadership Award from the California Environmental Protection Agency. The Sentra, based on the Sentra GXE model, proves that clean gasoline-powered vehicles can be driven without significant changes in infrastructure. At this time, the Sentra CA (where “CA” stands for “Clean Air”) is available only in California because of the statewide availability of low-sulfur fuel. The Sentra CA works in its cleanest state when low-sulfur fuel is used. Since 1996, regulations have required a reduction in the amount of sulfur in gasoline for sale in California. Catalytic converters, which reduce tailpipe emissions, are inhibited by sulfur, a common agent in fuels. Cleaner-burning gasoline enables catalytic converters to work more effectively and further reduce tailpipe emissions. According to the California Air Resources Board, cleaner-burning gasoline reduces smog-forming emissions from motor vehicles by 15 percent and reduces cancer risk from exposure to motor vehicle toxins by about 40 percent.