Life jackets are classified into different types based on their buoyancy and intended use:
Type I: Offshore life jackets with the highest buoyancy, suitable for open, rough waters.
Type II: Near-shore vests with less buoyancy than Type I, suitable for calm inland waters where rescue is likely to be quick.
Type III: Flotation aids designed for conscious wearers in calm, inland waters. They provide freedom of movement and are commonly used for water sports.
Type V: Special-use devices designed for specific activities and must be worn to be counted as a PFD. They offer various features tailored to specific water activities.