With the exception of a Coast Guard approved commercial hybrid Personal Flotation Device (PFD), which type of life preserver must be carried for each person on board a commercial uninspected passenger vessel?

The correct answer is that a Type I personal flotation device (PFD) must be carried for each person on board a commercial uninspected passenger vessel. Type I PFDs are designed for maximum buoyancy and safety, offering the highest level of flotation and being effective in rough waters. They are constructed to turn an unconscious person face-up in the water, which is crucial for passenger safety, especially in emergency situations.

Type I PFDs are often required for vessels operating in coastal waters or areas where conditions can be hazardous. Their design caters to the needs of commercial vessels, ensuring that all passengers have access to the most reliable flotation device available in case of an emergency. For this reason, regulations stipulate that these devices must be provided for each individual on board to comply with safety standards set forth by maritime authorities.

In contrast, Type II and Type III PFDs are suitable for different circumstances; Type II is more oriented toward calm waters and provides less buoyancy than Type I, while Type III is designed for general boating and offers comfort but may not keep an unconscious person face-up in the water. Therefore, Type I is the correct choice for ensuring maximum safety on a commercial uninspected passenger vessel.