Officiating is commonly devided among several umpires, who form the umpiring crew. The home plate umpire is given the duty of calling balls and strikes on pitches as well as making safe/out calls at home plate. The first, second and third base umpires make safe/out calls at their respective bags while the first and third base umpires also make fair/foul calls on balls hit down the first and third baselines. Other calls are typically the responsibility of the home plate umpire. (In the case of fewer available umpires, as is common in youth and community leagues, all responsibilities are bestowed upon the home plate umpire.)