Template:IndyCar sanctioning history

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American open-wheel car racing (IndyCar) sanctioning timeline
Sanctioning body 1905- 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s
AAA   unofficial   WWI   WWII                  
USAC               *                
CART                   * CART IndyCar CART Champ Car      
IRL                     IRL IndyCar  
Golden bar indicates which body sanctioned the Indy 500 each year. White text indicates name of racing series (when applicable).