The season commenced on 14 April at Monza and ended on 22 September at the Nürburgring.
In July 2012, the Stéphane Ratel Organisation announced the 2013 calendar.
On 8 April 2013, SRO released the provisional entry list for the first round at Monza.
Entries were required to complete 75% of the winning car's race distance in order to be classified and earn points.
Individual drivers were required to participate for a minimum of 25 minutes in order to earn championship points in any race.