The 2013-14 season, is the 28º Primera B Metropolitana season since it became part of the third tier of the Argentine football league system, and its 79º season overall. The tournament is reserved for teams directly affiliated to the Asociación del Fútbol Argentino (AFA), while teams affiliated to AFA through local leagues (known as "indirectly affiliated to AFA") have to play the Torneo Argentino A, which is the other third tier competition.