@jolilford Yep! Basically a letter giving their passport number & your passport number giving permission for them to travel without an adult. Most airlines have a templateโฆ. I have one on file if you need it.
@HR_Gem Some time ago my portfolio included shipsโฆ back the I remember the flag of the ship was also a factor, on the law that applied. Although the base employment contract should indicate which law applies.