Originally Posted by
slebo3213
In MD the definition of bicycles is limited to 3 wheeels. So, it's technically not even a bike around these parts.
That kind of leaves you in limbo. On one hand, it's human-powered so no license should be required. It may not be a bike, but neither is it a car. Is it a "slow-speed vehicle?" Anything not illegal is legal; so you should be good to use it even if it doesn't fit in any definition.