For the purpose of determining minor league roster limits & restrictions, a minor league player accrues a year of "service time" for every season where the player spends at least 30 days on an MLB and/or minor league active list or disabled list, unless the player spent the entire season on the DL. Service time accrued by a player while assigned to a club or clubs in the Dominican Summer League (DSL) and/or Venezuelan Summer League (VSL) does not count when determining minor league roster limits and restrictions.
IOWA: 38 players (RESERVE LIST) - 25 players (ACTIVE LIST) - no service time limit
TENNESSEE: 37 players (RESERVE LIST) - 25 players (ACTIVE LIST) - no service time limit
DAYTONA: 35 players (RESERVE LIST) - 25 players (ACTIVE LIST) - maximum two players with six or more years of service time, and maximum one player-coach with six or more years of service time (seasons spent on DSL or VSL rosters do not count).
KANE COUNTY: 35 players (RESERVE LIST) - 25 players (ACTIVE LIST) - maximum two players with five or more years of service time (seasons spent on DSL or VSL rosters do not count).
BOISE: 35 players (RESERVE LIST) - 30 players (ACTIVE LIST) - maximum three players with four or more years of service time (seasons spent on DSL or VSL rosters do not count).
AZL CUBS: 35 players (RESERVE LIST) - no players with three or more years of service time (seasons spent on DSL or VSL rosters do not count).
DSL CUBS: 35 players (RESERVE LIST) - no players with four or more years of service time, and only international players can be assigned to DSL clubs.
VSL CUBS: 35 players (RESERVE LIST) - no players with four or more years of service time, and only international players can be assigned to VSL clubs.
NOTE: Boise is permitted to designate 25 players as "active" for each game (at least ten must be pitchers beginning on July 1st), and the AZL Cubs, DSL Cubs, and VSL Cubs are permitted to designate 30 players "active" for each game (at least ten must be pitchers beginning on July 1st).