CALL MR 23              

Rule C2.9 Changes to the Rules of Part 2—when boats in different matches meet
Rule C6 Protests and Requests for Redress by Boats

Question
Yellow and Blue are in one match with Yellow ahead of Blue. Blue sees an incident between Yellow and Green (a boat in the match ahead) in which Yellow seems to be breaking a rule of Part 2. Green does not Y-flag. What action can Blue take?

Answer
None. Rule C6.1(a) and 6.2(b) prevent Blue from Y-flagging Yellow because she was not involved in the incident.
Rule C6.1(b) prevents Blue from red-flagging Yellow.