Wagner is Deputy Secretary of Administration for Children and Families of the Ministry of Health. ORR is a program of administration for children and families.
Wagner said the Department of Homeland Security sent more than 40,000 migrant children to ORR in the 2017 financial year.
After staying in an ORR shelter, the majority of the children are sent to godparents who are closely associated with the children – typically a parent or close relative, Wagner said, though some live with "other than" ̵
Between October and December 2017, Wagner informed the Subcommittee that ORR had asked 7,635 unaccompanied children for control, but the ORR" could not be certain of the whereabouts of 1,475 children, "Wagner said, with another 28 having run away.
That's more than 19% of children who were placed by the ORR. But Wagner said HHS is not responsible for the children.
"I understand that it's HHS's longstanding interpretation of the law that ORR is not legal "It is responsible for children after they have been discharged from ORR care," Wagner said.
A request for comment from HHS on Saturday was not returned.
The ORR has e A series of assessments to determine if a sponsor is fit to provide and care for a child. These guidelines have also been improved since February 2016. Under the practices of the ORR, it assesses the relationship of potential sponsors to children and conducts background checks to ensure that children are protected from traffickers or smugglers, Wagner said.
Wagner's statement has intensified a month after the Department of Homeland Security defended an agency policy that has led to more families being separated at the border checked.
At a Senate hearing earlier this month, Homeland Security Secretary Kirstenen Nielsen said similar divisions in the US "happen every day".
Nielsen said that politics will call on anyone who crosses the border illegally to persecute them, even if they claim that they deserve asylum or have small children. Parents who are subsequently prosecuted are separated from their children.
"Our policy is, if you break the law, we will persecute you," said Nielsen. "You have the option of entering a port of entry and not entering our country illegally."
CNN's Kopan Valley contributed to this report.