I do not know if I needed both of her parents to sign the letter but they are married and figured why not let both parents sign this. Rather do it in NC than wait to we were getting ready to board and they ask why only one parent signed. I understand why you didn't have to sign letter because you were going to be there on the ship but neither one of her parents were going and I figured why not. I was surprised too that they did not ask for this letter but they didn't and I had it ready for them just in case. I am ready to go back cruising some friends are going on the NORWAY in may 2003 and we are thinking about it. A much older ship but cruising is fun (this one is for us adults only). Trying to decide..........