The 2015, was the 2º Torneo Federal A season since it became part of the third tier of the Argentine football league system.
The tournament is reserved for teams indirectly affiliated to the Asociación del Fútbol Argentino (AFA), while teams affiliated to AFA have to play the Primera B Metropolitana, which is the other third tier competition.
Consisted of fourteen (14) teams that qualified from the First Stage and the winner was declared champion and automatically promoted to the Primera B Nacional.
The 10 winning teams coming from the Third Stage played against each other in a Double-elimination tournament.
1 Play their home games at Estadio José María Minella.