What if both parents won’t be traveling with their child?
The Netherlands does not require entry/exit authorization letters if you are traveling with a child 18 or under and one or both parents will not be in the country. Some countries now require these letters as a deterrent against international child kidnapping. If you would like to carry a letter as an added safeguard to avoid delay at the airport, you can get a notarized letter from the absent parent(s) giving you permission to enter the Netherlands and take the child out of the Netherlands again. Global Family Adventures can provide you with a form upon request that has been accepted by foreign authorities in the past.