The National Association for Stock Car Auto Racing (NASCAR) is the sanctioning body for the NASCAR Cup Series, the Xfinity Series and the Camping World Truck Series. NASCAR also administers a number of regional racing series, including the Whelen Modified Tour, and the Whelen All-American Series, as well as international series in Canada, Mexico, and Europe. Another general area of criticism, not only of NASCAR, but other motorsports as well, includes questions about fuel consumption, emissions, engine noise levels, and pollution, and the use of lead additives in the gasoline.