Originally Posted by craz

I believe that the UM must be presented at a check-in counter or some other counter before going thru TSA, which is done with an airline rep with them. A parent can accompany them by getting a pass and go to the Gate if they so chose. But the signing over of said UM is done before Security, I dont know of any case (not saying it hasnt happened) where a UM signs themselves over or simply shows up at the Gate by themselves, its possible but I believe its not suppose to occur. Im not even sure once you designate the traveller as a UM if they can in fact do OLCI and print a BP, imo they shouldnt be able to since all sorts of paperwork needs to be filled out and the Adult must sign and hand over the UM