You must have an official roster printed from the USAV portal.
Here are instructions to printing the roster.
1. Login to USAV website: https://webpoint.usavolleyball.org/
2. Click on Member Profile (Left Column)
3. Click on Team Roster (4th tab under your Member ID: )
4. Click on Red Team Roster button
5. Roster should be in view. Right click and Print.