Inter-agency guiding principles on unaccompanied and separated children are rules that different agencies (like the government, schools, or social workers) can follow to make sure that children who are not with their parents are safe and treated well. These rules explain things like what adults in charge of the child's safety or care should do. For example, they should make sure the child has basic things (like food, clothing and a place to stay) and that their rights are respected. They should also try to help the child get back together with their parents if it is safe and possible to do so.