Teams are prohibited, from the first day the league allows the signing of free agent players until the first league-sanctioned cutdown date, from having more than forty (40) players on their roster. Players on the following lists will be considered eligible to be counted for the forty-man roster: active list, inactive list, injured reserve, suspended list, left camp, refused to report and free agent assignments.

Teams will be required to reduce their active lists to twenty-one (21) players by 2:00 p.m. (CST) on the Monday preceding the first weekend of the regular season. The 21-player active list will remain in effect for the remainder of the regular season and the playoffs, including the ArenaCup.

Each team will maintain a nineteen (19) man active and a three (2) man inactive roster during the regular season. Every club must dress eighteen (19) players for each game.