Upon being separated from their parents, children are officially designated “unaccompanied alien children” by the US government — a category that typically describes people under the age of 18 who come to the US without an adult relative arriving with them. Under federal law, unaccompanied alien children are sent into the custody of the Office of Refugee Resettlement (ORR), which is part of the Department of Health and Human Services. The ORR is responsible for identifying and screening the nearest relative or family friend living in the US to whom the child can be released. That's the law. pull a family apart and make sure the kids stay here. Happy Now ?