Indy Racing League, LLC is an American-based auto racing sanctioning body, adopting the trade name of INDYCAR. INDYCAR sanctions four racing series, the premier IZOD IndyCar Series (often abbreviated ICS or IICS) with its centerpiece Indianapolis 500, and developmental series Firestone Indy Lights, the Star Mazda Championship and the U.S. F2000 National Championship, which are all a part of The Road To Indy. The trade name INDYCAR was officially adopted on January 1, 2011.