• One - two umpires will be present at each game.
• Umpire is to call each child safe at first base and home plate
• Umpire must wear a uniform without Chest guard. Shorts are permitted
• Umpire is to be presentable and clean at all games
• Umpire is to arrive 30 minutes before each game
• Umpire is to call beginning and ending of each game at the appropriate time
• Umpire is responsible for overseeing the behavior of and for the safety
  of all players and their buddies playing baseball
• Umpire is to assist coaches and players as necessary
• Umpire should always demonstrate enthusiasm, love and concern for each player, buddy and volunteer
• Umpire is responsible at all times, on and off the field to demonstrate high morals and integrity

Source: The Miracle league