What do the starter and assistant starter do?

Starter (Red Book C5-303, ISU Rule 286):

• Decides all disputes relating to the start.
• Controls the starting procedure and takes a position with a clear view of all skaters starting.
• May use a starter pistol, a whistle or another approved signalling device.
• In relays, fires the gun to signal the last three laps after being warned by the lap scorer.
• Can recall a start, or designate another starter to call skaters back after a false start.

Assistant Starter (C5-304): may recall the race if a false start occurs.

SSC publishes a Manual for Starters (January 2022) and a Starter Competition Assessment form on its officials resources page.