Clubs from Buenos Aires surroundings, as well as some from Santa Fe Province, are promoted from or relegated to the Primera B Metropolitana ("Metropolitan B Division") while for teams from the other provinces the Torneo Federal A ("Federal A Tournament") is the next level down.

Primera B Nacional games are often transmitted to Argentina and abroad on television by TyC Sports.

It was created in 1986 to integrate unaffiliated clubs into the Argentine football structure, which until then had only participated in Nacional championships of Argentina's First Division tournament.

It brought together teams from the old Primera B (until then, the second division) and regional leagues from several Argentine provinces.

Since the first season held in 1986–87, the following teams have crowned champions of the division:[4] In case of championships defined by final, they are indicated.