Does Boost Fin Need a License or Registration?

In fact, Boost Fin isn’t meant for constantly pushing a human body so your board should not be considered a motorized vehicle or vessel.

Out of our experience and based on feedback from our customers, there haven't been cases where the registration or license were needed. Anyway, to make 100% sure, you can contact the relevant state boating authority (e.g. Department of Natural Resources, DMV/DMV-equivalent, state Fish & Wildlife or marine patrol) for the specific water body where you plan to ride.