PART 4 - OTHER REQUIREMENTS WHEN RACING

Part 4 rules apply only to boats racing. However, rule 55 applies at all times when boats are on the water .

40 PERSONAL FLOTATION DEVICES

When flag Y is displayed with one sound before or with the warning signal, competitors shall wear personal flotation devices, except briefly while changing or adjusting clothing or personal equipment. Wet suits and dry suits are not personal flotation devices.