How is a match scored, and when do teams change courts?

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Format Matches are best 3 out of 5 sets, rally scoring. Sets 1-4 go to 25, and a deciding fifth set goes to 15. A set must be won by 2 points. A state association may allow best 2 out of 3. If so, all sets are played to 25. Coin tosses The home team chooses its playing area/bench for the first set when it enters the facility. The prematch coin toss (head coach and captains attend) is for serve/receive only. The deciding-set coin toss is held at the officials' table by the second referee, called by the home team's playing captain, and is for serve/receive or playing area. Changing courts Teams change courts between sets (a state association may modify this). Teams don't change courts during the deciding set. Intermission An optional intermission is allowed only for promotional or special-recognition activities, between sets 2 and 3, up to 5 minutes (between sets 1 and 2 in a best-of-3 match). The second referee's second warning between sets now comes at 2:30 (4:30 if an intermission is used).