In January 2008, the American Le Mans Series announced it would hold its first "Green Challenge" competition during Petit Le Mans at Road Atlanta in October, ahead of the Challenge being implemented at all ALMS races during the 2009 season.
Pada Januari 2008, American Le Mans Series mengumumkan akan mengadakan kompetisi "Green Challenge" pertama saat Petit Le Mans di Road Atlanta bulan Oktober, selanjutnya Green Challenge akan diimplementasikan pada semua balap ALMS pada musim balap 2009.