A total of 22 teams competed; the champion and runner-up were promoted to Argentine Primera División.

The Second Promotion Playoff or Torneo Reducido was played by the teams placed 2nd to 11th in the overall standings: Atlético Tucumán (2nd), who entered in the Semifinals, Belgrano (3rd), who entered in the Second Round, and in the first round entered San Martín (T) (5th), Banfield (6th), Almirante Brown (7th), Instituto (8th), Douglas Haig (9th), Deportivo Morón (10th) and Atlético de Rafaela (11th), (Cipolletti (4th) did not qualify because it was relegated).

In the first round also participated the champion of Primera B Metropolitana: Central Córdoba (R), and Nueva Chicago and San Martín (SJ), both winners of Zonales Noroeste y Sureste from Torneo del Interior.

Note: Belgrano won 5–2 on aggregate, promoting to Primera División Note: Clubs with indirect affiliation with AFA are relegated to their respective league of his province according to the Argentine football league system, while clubs directly affiliated face relegation to Primera B Metropolitana.

This season Deportivo Maipú had to defend their spot in Primera B Nacional against Godoy Cruz from the Liga Mendocina de fútbol.