| Aspect | Contract Volleyball Referee | Volleyball Umpire |
|---|
| Certifications | Required officiating certifications, such as USA Volleyball certification | Similar officiating certifications, often the same as referees |
| Work Environment | Officially officiates volleyball matches at various levels, including tournaments and leagues | Officiates volleyball matches, often at the same levels as referees, sometimes focusing on specific roles |
| Employer & Industry Usage | Hired by event organizers, leagues, or associations for specific matches or tournaments | Often used interchangeably with referees; employed by similar organizations |
Both Contract Volleyball Referees and Volleyball Umpires officiate volleyball matches and require similar certifications. The main difference lies in terminology; 'referee' is more common in North America, while 'umpire' is used internationally. Both roles are essential for fair play and are employed by the same organizations for various levels of competition.