In addition to one approved life jacket for each person on board which vessels must have one Type IV USCG-approved PFD on board?

In addition to having one approved life jacket for each person on board, vessels 16 feet and longer must have one Type IV USCG-approved personal flotation device (PFD) on board. This includes boats such as canoes, kayaks, and motorboats. The Type IV PFD is typically a throwable device, like a buoy or rescue ring, designed to assist in rescue efforts. It's important for all vessels to comply with these safety requirements for enhanced safety on the water.