Who must wear a USCG-approved personal flotation device according to Maryland law?

In Maryland, children under the age of 13 are required to wear a U.S. Coast Guard-approved personal flotation device (PFD) while on any vessel that is underway, unless they are below decks or in an enclosed cabin. Additionally, all individuals participating in certain activities, such as water skiing or riding on personal watercraft, must also wear a PFD. It's essential for boaters to be aware of and comply with these regulations to ensure safety on the water.