20 teams, each plays the others twice - home and away - for a total of 38 games each, over 38 game weeks.
3 points for a win, 1 point for a draw, 0 points for a loss.
1. points won; 2. total goal difference; 3. total goals scored.
Qualification for AFC competitions:
1-2 place: AFC Champions League
Relegation from the league:
18-20 place: relegated to First Division
Promotion to the league:
3 teams from First Division