There are seven officials on the field that control a game and an eighth official in a 'booth' in the stands that controls the use of instant replay in the final two minutes of each half.
4 officials are in a baseball game
A game of regulation basketball has two officials.
Two; an up-ref and a down-ref.
as many as you would like but in a real volleyball game 6 on each team and there is 2 teams so 12 people can play in a game of volleyball.
There are no parts
There are seven officials during a NFL game
There are seven officials on the field during a football game.
there are 4 different officials in badminton