Umpires make the decisions about play in a softball game.  The number of umpires in a game can range from a minimum of one to a maximum of seven. There is never more than one "plate umpire"; there can be up to three "base umpires", and up to a further three umpires positioned in the outfield. Most  games use a crew of two umpires (one plate umpire, one base umpire). The umpire's decisions are usually indicated by both the use of hand signals, and by vocalizing the call.