Three Drivers Allowed at National?

[MinnieMe2]

We have a car rented 7/6-15 through EA. DH and I will drive, but I'm wondering if our 26-year-old son can also drive the car. Anyone know about this?

 

[CarolA]

I don't think children are on the "free extra driver" program. You could call and ask, but my experience is that National is clueless on this.