not later than 72 hours after the child has been determined to be an unaccompanied noncitizen child. (vi) Release of nonparent family member (I) In general If the Secretary of Health and Human Services determines that the nonparent family member of an unaccompanied noncitizen child apprehended with a nonparent family member is a safe sponsor, and the applicable Federal field specialist and case manager or case coordinator have verified the family relationship, the Commissioner shall approve the release of the nonparent family member for the purpose of reunification with the child. (II) Retention of unaccompanied noncitizen child determination An unaccompanied noncitizen child released to a nonparent family member who is released under subclause (I) shall retain his or her determination as an unaccompanied noncitizen child. (III) Post-release counsel and services The Secretary of Health and Human Services shall provide to each child released to a nonparent family member who is released under subclause (I) post-release counsel and services, such as legal counsel, in the location in which the child's removal proceedings are scheduled. (vii) Transfer to office of refugee resettlement custody (I) In general If the Secretary of Health and Human Services cannot make a determination with respect to whether a nonparent family member is an imminent substantial and credible threat to a child within 72 hours after the Commissioner has made the unaccompanied noncitizen child determination, or if an unaccompanied noncitizen child apprehended with a nonparent family member is denied expedited release under this subparagraph— (aa) such child shall be placed in the least restrictive setting