Alamo's web site has the below information listed under Policies - Additional Driver Additional Driver ● All additional drivers must meet all rental requirements. ● Additional drivers must appear at the rental counter with the primary renter. ● Additional drivers must sign the rental agreement. ● An additional daily fee may apply for any Additional Drivers. ● The additional driver can only be added to the contract at the pick up location. Note: State law in California, Illinois, Missouri, Nevada, Oregon, and Wisconsin allow the spouse to be an automatic authorized driver as long as renter requirements are met.