Yes, in Florida this card is known as the Florida Boating Safety I.D. Card and it is required if you were born after Dec. 31, 1987 and are operating a motorized boat powered by an engine of 10 HP or greater.
Most other states and most of Canada’s provinces and territories also require boaters to carry a Boater Education Card, more commonly known as a ‘Boating License’. Get the Card, even if you aren’t required to in Florida, and you’ll be good to go boating in most of North America.