CALL MR 18              

Rule C2.8 Changes to the Rules of Part 2—interference by a boat not racing
Rule C8.4 Penalties Initiated by Umpires - informing the protest committee

Question
After a race the umpires receive a report from a reliable observer that a boat broke rule C2.8 before her race by interfering with a boat that was racing. May the umpires initiate a hearing to consider penalizing her?

Answer
No. As this concerns a rule of Part 2, a hearing cannot be initiated by the umpires. Only the boat that was interfered with can take action by displaying a Y flag at the time of the incident.