An Air Driver is a Part-time job that is BID according to your company seniority. You might shuttle NDA from the airport to your building, deliver Early AM, Next Day and possibly Two Day Air, make On Call Air pickups, pick up air at late pickups, or deliver Saturday Air. You are not supposed to handle any ground, unless it is a Return Service package in a Letter Box. Thats at least my understanding of what an Air Driver is. It is a good way to get experience "driving the brown truck".