The cars eligible to enter an FIA Codasur regional championship event are:
Group S2000-Rally: 2.0 Atmospheric
Group N cars over 2000cc (N4 2010)
Group A cars over 1400cc and up to 1600cc
Group N cars over 1600cc and up to 2000cc
Group N cars over 1400cc and up to 1600cc
Group N cars up to 1400cc
In classes 6, 8, 9 and 10, cars with ADN/Codasur homologations will be admitted in addition to those with FIA homologations.
All the rallies should be scheduled as follows:
Administrative documentation review
Ceremonial start and super special stage (optional)
The total distance of the special stages is between 140 km and 180 km, divided in two legs. The length of the special stages should be considered within a minimum of 40 per cent and a maximum of 60 per cent of the route The maximum length of each special stage is 40 km.