When is each person on board a motorboat required to wear an approved PFD (life jacket)?

In many regions, each person on board a motorboat is required to wear an approved personal flotation device (PFD) when the boat is underway, especially if it is less than a certain length, such as 16 feet. Additionally, children under a specific age, often 12, are typically mandated to wear a PFD at all times while on the boat. It is essential to check local regulations, as requirements may vary by jurisdiction.