You don't need an operator license. This is copied from:
http://www.outdooralabama.com/CERTIFICATION / LICENSE REQUIREMENTS FOR NON-RESIDENTS:
Non-residents 12 years old and older, may operate on Alabama waters up to 45 days per calendar year without having to obtain a vessel operator's license. If operating a vessel for more than 45 days per calendar year, the non-resident must get an Alabama Non-Resident Vessel Operator's License. Non-residents who have obtained a vessel certification or license from their home state may use that in lieu of the Alabama Non-Resident Vessel Operator's License. HOWEVER: Non-resident vessel operators 12 or 13 years old, can only operate if there is someone 21 years old or older on board, who either has a valid vessel operator's license in possession or falls under the 45-day exemption period because of non-residency status, and who is seated in a position to take immediate control of the vessel if necessary.
Non-residents 14 years old or older, may legally operate without supervision.