28. 
The following procedure must be followed for player changes:
1. Immediately after a stoppage of play, the referee signals to the coach of the visiting team to make his player changes;
2. The visiting team has five seconds to make its changes;
3. The referee raises his arm to indicate that the visiting team may no longer make player changes;
4. With his arm still up, the referee signals to the coach of the home team to make his player changes;
5. After five seconds, the referee drops his arm to indicate that the home team may no longer make changes;
6. As soon as the referee drops his arm, the linesman conducting the faceoff: