What must be true about PFDs on board a vessel?

For Personal Flotation Devices (PFDs) on board a vessel, it is essential that they are in good and serviceable condition. This means that the PFDs must be free from any damage, such as rips or tears, and must be adequately functioning to ensure the safety of those on board. A PFD that is worn out or damaged will not effectively provide buoyancy or protection in an emergency situation, which is why this regulation is critical for ensuring the safety of all passengers.

While it is important for PFDs to be ready for use, simply having them on board is not sufficient if they cannot do the job they are designed for. This requirement underscores the key safety principle that boating equipment, especially safety gear, must meet strict standards to be effective. Other considerations regarding PFD use may include how they are stored or whether they must be worn at certain times, but the central focus here is the condition of the PFDs themselves.