From its humble beginnings in the 1970’s to its inclusion in the 2008 Beijing Olympic Games, BMX racing has seen many changes through the years. Many sanctioning bodies have come and gone during the 40 year history of the sport, but two have remained. The American Bicycle Association (ABA) and the National Bicycle League (NBL) have both been in operation since the 1970’s and now, like so many sports leagues, the two have joined forces and will operate as USA BMX. USA BMX will operate out of the current ABA headquarters in Gilbert, Arizona. With over 350 sanctioned tracks around the United States, Canada, and Puerto Rico, USA BMX will serve as the sanctioning body for these tracks and over 70,000 members. USA BMX will coordinate the national, regional, state, and local scheduling for all tracks as well as manage the 2012 U.S. Olympic BMX Trials in conjunction with the United States Olympic Committee and USA Cycling. American BMX racers who grew up racing at both ABA and NBL tracks have gone on to win three Olympic medals and nine BMX World Cup events; more than any other country. BMX racing returns to the Olympics in 2012 in London.