I guess this is something which is sometimes addressed in separation agreements - I know it was in our case. It just stated that each parent had to notify the other about planned trips and provide contact information. It may be helpful to talk to DSS about this.
This question didn’t get answered before so I’m trying again.
Most couples don’t have a court order covering child custody. So can a parent just take a child out of state at any time if there is not a court order?
Every article I read on the subject has the term “court ordered” in it.