@Wylie ******
If it is in the court decree then I would guess that would be correct. But that is not always the case. But as far as asking at the airport. I have only been asked when I was leaving Belize with my half-Hispanic son. Once they looked at his US passport everything was fine. But I have personally flown to many different countries alone with my kids and have never been asked one time. I just had friends in from the US and it was a single father. He was not asked to provide any documents other than passports and tickets. Maybe it is hit and miss and of course, if you agree to those terms in your divorce. Then that is the law. But as far as being asked at the airport. Has never happened.