| Umpire Level: |
| L7 - Referee (International or National) |
| L6 - Basic Referee (STTA certificate) |
| L5 - International Umpire (ITTF certificate) |
| L4 - Active and experienced L3 NSG Umpires |
| L3 - National Umpire (STTA certificate) |
| L2 - Junior Umpire (active player with PEOS certificate) |
| L1 - Junior Umpire (active player) |
