The referees apply the Fédération Internationale de Volley-ball (FIVB) rules. However, Sports Services has introduced a number of smodifications  to better comply with the philosophy and objectives of its intramural programs:

Distribution of Equipment

1. Net height will be set at 2.24 meters.
2. There can be NO jewelry worn at anytime

Players

1. Teams must have a minimum of 6 players on the court to start a game, 2 of whom must be must be female
2. Should a player become injured during the game and is no longer able to continue play, causing the team to fall below 6 players; the team may play one player down to a minimum of 4 players on the court.

Scoring and Tie Breaking Procedures

1. No game shall end in a tie.

Game Format

1. Prior to the match, both teams will be given a simultaneous 10 minute warm-up. It is up to the teams to run this themselves and communicate with the other team if they want to split the court to do hitting drills and serves.
2. Each game consists of 3 sets. Set 1 and 2 are rally points to 25, with a cap of 27. Set 3 will consist of a 15 point rally, with a cap of 17.  If the third set approaches the time limit, the referee will provide numerous warnings and will call the last serve of the game. 
3. There is no limit on substitutions however you must return to the game in the order they subbed out (*libero rule). 
4. At the end of each set, when the referee calls a "game-point" due to a tie and lack of time, the final game point will be given to the team who wins the rally. The team does not have to win by 2 points.

Rules of the Game

1. The referee must authorize the service by a hand signal and a whistle after he or she has checked that the two teams are ready to play and that the server is in possession of the ball.
2. If the server hits the ball before the referee has authorized the service, the ball will be returned to the player for a second service. If the same player hits the ball again before the referee whistle, the team loses the serve and the ball will be given to the other team.
3. Players are allowed one step into the court for their serve.
4. If the ball hits the net during the service it remains in play, so long as it goes over the net.
5. During a service only one toss or release is allowed. If the server releases the ball for service, and does not attempt to serve it, the referee will issue a warning, following a re-serve. If this occurs throughout the game, the referee will award the other team with a point. 
6. The server must wait until both teams are ready before serving.

7. Any contact with the net during a play is a fault.

Defaults

1. A default takes place if, after the 10 minute warm-up, one of the two teams
   1. has fewer than 6 players on the court (2 women on court at all times) or if one or more of the 6 players on the court are not wearing the intramural T-shirt ;
2. In the event of a default, the score that will be given is 3-0, in favour of the team with the appropriate number and composition of players.
3. The referees will officiate a friendly game if the players request so.