Officiate at sporting events, games, or competitions, to maintain standards of play and to ensure that game rules are observed.
Inspect sporting equipment and/or examine participants in order to ensure compliance with event and safety regulations.
Signal participants or other officials to make them aware of infractions or to otherwise regulate play or competition.
Verify scoring calculations before competition winners are announced.
Confer with other sporting officials, coaches, players, and facility managers in order to provide information, coordinate activities, and discuss problems.
Direct participants to assigned areas such as starting blocks or penalty areas.