PART 4 - OTHER REQUIREMENTS WHEN RACING
Part 4 rules apply only to boats racing.
40 PERSONAL BUOYANCY; HARNESSES
40.1 When flag Y is displayed with one sound before or with the warning signal, competitors shall wear life-jackets or other adequate personal buoyancy. Wet suits and dry suits are not adequate personal buoyancy.
40.2 A trapeze or hiking harness shall have a device that can quickly release the competitor from the boat at any time while in use.
Note: This rule takes effect on 1 January 2009.