[3][4][5] Terengganu and Kelantan were promoted from 1990 Liga Semi-Pro Divisyen 2.
[6] Malaysia Cup was played from the quarter-final stage, scheduled for November after the league was finished.
The Malaysia Cup quarter-final and semi-final matches will be played on a home and away basis.
[5] Johor ended up the season by winning the title.
10 teams competing in the third season of Liga Semi-Pro Divisyen 1.