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. The champion will be promoted to Primera B Nacional. 40 teams competed. The regular season began on March 20 and ended on December 10.