The season started on 12 April at Monza and ended on 20 September at the Nürburgring.
The season featured five rounds, with each race lasting for a duration of three hours besides the 24 Hours of Spa-Francorchamps and the 1000 km Paul Ricard events.
On 3 November 2014, the Stéphane Ratel Organisation announced the 2015 calendar.
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.