Which type of life preserver must be carried for each person on board an uninspected passenger vessel, apart from a USCG approved commercial hybrid PFD?

A Type 1 life preserver, also known as an offshore life jacket, is specifically designed for maximum buoyancy and is suitable for all water conditions, particularly in harsh environments or offshore situations. It is intended to turn an unconscious person face up in the water, providing a critical safety feature for those who may not be able to save themselves. This type of personal flotation device (PFD) is a requirement for uninspected passenger vessels to ensure the highest level of safety for all individuals on board.

In this context, while Type 2 and Type 3 PFDs may provide reasonable buoyancy and comfort, they are not as reliable as Type 1 in extreme conditions. Type 4 PFDs, which are throwable devices, are not intended to be worn and do not meet the requirement for individual, wearable flotation devices necessary for each person on the vessel. Hence, for compliance with regulations and ensuring safety at sea, each passenger must have access to a Type 1 life preserver.