First phase: The twenty clubs played each other in a double round-robin system. The eight best teams qualified to the Final phase, with the best teams in each round and the team with the best overall record earning one bonus point. the other teams in the sum of both rounds would dispute the Torneio de Descenso.
Torneio de Descenso: The twelve teams would be divided into two groups of six teams, in which each team played the teams if its own group in a double round-robin system. The team with the fewest points in each group would qualify to the Torneio da Morte.
Torneio da Morte: Played in two-legged knockout ties. In the Semifinals, the two teams from the Torneio de Descenso would play each other, with the loser being relegated, and in the Finals, the winner of the Semifinals would play against the runners-up of the Second level, with the winner qualifying to the First level.
Final phase: The eight remaining teams played each other in a double round-robin system; the team with the most points won the title.
Updated to match(es) played on May 13, 1979. Source: RSSSF.com Rules for classification: 1) points; 2) wins; 3) goal difference; 4) number of goals scored.
Updated to match(es) played on July 25, 1979. Source: RSSSF.com Rules for classification: 1) points; 2) wins; 3) goal difference; 4) number of goals scored.
Updated to match(es) played on July 25, 1979. Source: RSSSF.com Rules for classification: 1) points; 2) wins; 3) goal difference; 4) number of goals scored.
Updated to match(es) played on October 14, 1979. Source: sumulas-tche.blogspot.com Rules for classification: 1) points; 2) wins; 3) goal difference; 4) number of goals scored.
Updated to match(es) played on October 14, 1979. Source: sumulas-tche.blogspot.com Rules for classification: 1) points; 2) wins; 3) goal difference; 4) number of goals scored.
Updated to match(es) played on September 20, 1979. Source: RSSSF.com Rules for classification: 1) points; 2) wins; 3) goal difference; 4) number of goals scored.