§ 507-d. Confinement of juvenile delinquents under sentence of the courts of the United States. The directors of secure and limited secure facilities shall receive and safely keep in such facilities, subject to the provisions of this article, any person not over the age of sixteen years convicted of any offense against the United States, and sentenced to imprisonment by any court of the United States, sitting within this state, until such sentences be executed, or until such delinquent shall be discharged by due course of law, conditioned upon the United States supporting such delinquent and paying the expenses attendant upon the execution of such sentence.