20 teams, each plays the others twice - home and away - for a total of 38 games each, over 38 game weeks.

Scoring points:

3 points for a win, 1 point for a draw, 0 points for a loss.

Table order:

1. points won; 2. games won; 3. total goal difference; 4. total goals scored; 5.* points in head-to-head matches; 6.* goal difference in hth matches; 7.* away goals in hth matches; 8. play-off (only for deciding the champion and relegation); 9. lesser number of red cards received; 10. lesser number of yellow cards received; 11. draw.

* - only applicable if exactly two teams are tied.

Qualification for CONMEBOL competitions:

1-6 place: Copa Libertadores

7-12 place: Copa Sudamericana

Relegation from the league:

17-20 place: relegated to Serie B

Promotion to the league:

4 teams from Serie B