which of the following is a requirement for life jackets

A key requirement for life jackets is that they must be properly sized for the intended wearer. Additionally, life jackets must meet specific standards depending on the region, such as the Australian Standard AS 4758, and provide sufficient buoyancy to support the body and keep the head above water. They should also be in good condition, readily accessible, and appropriate for the intended water activity. Some standards require life jackets to maintain buoyancy even after prolonged submersion, have features like reflective tape, whistles, and comply with safety regulations for different vessel types and conditions.