Originally Posted by
nd2010
Rent the car yourself then add someone else as an authorized driver. They might offer 1 free additional driver.
That's not what the OP was asking not does it achieve his or her goals. For example, if the family member wants to rent where OP won't be on the trip. And, National does not just hand out free additional drivers unless the Contract Code being used provides for them.
OP, this sounds like it would be best handled by the Emerald Customer Service line. There is no way to achieve this online as far as I know.