North Dakota

Motorcycle:

“every motor vehicle having a seat or saddle for the use of the rider and designed to travel on not more than three wheels in contact with the ground, but excluding implements of husbandry. The term does not include an electric bicycle.”

Motorized Bicycle:

“a vehicle equipped with two or three wheels, foot pedals to permit muscular propulsion or footrests for use by the operator, a power source providing up to a maximum of two brake horsepower having a maximum piston or rotor displacement of 3.05 cubic inches [49.98 milliliters] if a combustion engine is used, which will propel the vehicle, unassisted, at a speed not to exceed thirty miles [48.28 kilometers] per hour on a level road surface, and a power drive system that functions directly or automatically only, not requiring clutching or shifting by the operator after the drive system is engaged, and the vehicle may not have a width greater than thirty-two inches [81.28 centimeters]. The term does not include an electric bicycle.”

(Source: https://www.ndlegis.gov/cencode/t39c01.pdf)
Vector graphic of North Dakota
LicensingMinimum AgeRegistrationInsuranceHelmet
MotorcycleMotorcycle License or Permit14RequiredRequiredRequired if under 18.
Passengers of an operator that is under 18 are required to wear a helmet regardless of their age.
Motorized
Bicycle
Any License or Permit14RequiredRequiredSee above.
(Sources: https://www.dot.nd.gov/divisions/driverslicense/motorcyclelicense.htm#scooter; https://www.grandforksgov.com/home/showdocument?id=1841)