Section 4: Players & Officials
- 6 players on court per team; roster 12-18 D1; one or two designated liberos
- Libero: defensive specialist, contrasting jersey, plays only back row, may replace any back-row player without counting against substitution limit
- Substitutions: up to 15 per set (NCAA framework); substituted players may re-enter
- Officials: 1st referee (R1, elevated stand), 2nd referee (R2, opposite), 2-4 line judges, scorer + assistant
- Video review: NCAA challenge framework allows review of ball in/out, antenna contact, foot fault on serve, net touch, and ball-handling per the published Rules Book