A boat and motor requires a title and registration same as a car.You should get one when you purchase a boat.Some states do not require titles but do require a previous registration.Check with your local or state DNR.I am unaware of a boater driver license.Most places I go you have to be 16 and/or hold a valid drivers license.This will vary from state to state,please check your local or state DNR.
Let me clarify:
All powered boats must be registered.
All Alabama residents must have a Vessel endorsement before they can drive a boat, including jet skis.
Operation of a vessel or personal watercraft by persons under the age of 12 is prohibited. Must be 14 years old and have a vessel license to operate a vessel or personal watercraft alone.
Check your local rules. In Ga, at 12 - 13 years of age, you can operate anything with 30hp or less with a Boater's Safety Card, OR an adult in the boat, and at 14 - 15 you can operate anything with the card or the adult. At 16, you need neither the card nor the adult.