Server may serve underhand or overhand. Server may catch their toss (or let the toss drop to the floor) without penalty.
3rd/4th Grade Level
5th/6th Grade Level
For Both Age Groups
Any time the ball crosses the net, including a serve, it is not allowed to contact any overhead obstruction.
If there is an overhead obstruction that has any part directly over the in-play surface, and the ball contacts the overhead obstruction between the three hits allowed by a single team, the ball is in play.
All of the above apply with one revision; if a match has to go to a third set, it will only be scored to 15, not 25. First two sets to 25, third set to 15.