Do you need a motorcycle license to operate a 150cc scooter in Arizona - or is a regular Driver's License enough?
From the Arizona Motor Vehicle Division website:
"A motorcycle license or endorsement is required to drive a
motorcycle or motor-driven cycle. You must be at least 16 to apply
for a motorcycle license."
For the sake of AZ law, a 'scooter' of <50cc is a
'motor-driven cycle' 50cc or larger is a 'motorcycle'.