(a) Canoes and kayaks 16 feet or more in length are exempted from the requirements for carriage of the additional throwable PFD required under § 175.15(b).

(b) Racing shells, rowing sculls, racing canoes, and racing kayaks are exempted from the requirements for carriage of any PFD required under § 175.15.

(c) Sailboards are exempted from the requirements for carriage of any PFD required under § 175.15.

(d) Vessels of the United States used by foreign competitors while practicing for or racing in competition are exempted from the carriage of any PFD required under § 175.15, provided the vessel carries one of the sponsoring foreign country's acceptable flotation devices for each foreign competitor onboard.