(i) Service-zone : The service zone is a 9 m wide area behind each end line. It is an area behind the backline which is used for performing service.
(ii) Substitution zone: The substitution zone is limited by the extension of both attack lines up to the scorer’s table.
(iii) Attack line: On each court, an attack line, whose rear edge is drawn 3 m back from the axis of the centre line, marks the front zone.
(iv) Substitution : Replacement of one or more players from the listed substitution apart from libero. The coach of the team requests for substitution to the assistant referee. An area 3 m away towards sideline (substitution area) is allowed to move for substitution. When Referee signals for substitution, the player should move out and substitute player should enter.
