" wrote in
oups.com:

Bicycles are popular and dangerous and
rarely licensed. Ultra-light planes, roller skates, scooters, swim
fins, pogo sticks, skis, Segways, motorized shopping carts, high
powered propeller beanies, horses, donkeys, really big prehistoric
carnivorous ducks and many, many more modes of transport may be
operated unlicensed in most countries

Ok, so, as with these devices, we won't require testing and licensing to
operate boats less than 5 hp, including manually powered. Sailboats
without engines will be exempt. Hatteras 58' motor yachts will not.

Larry
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