; or (B) unaccompanied noncitizen children appear before immigration courts for removal proceedings. (2) Prioritization In expanding services under this subsection, the Secretary shall prioritize locations that have the highest numbers of unaccompanied noncitizen children in the custody of the Secretary and unaccompanied noncitizen children appearing before immigration courts. (3) Access to records (A) In general A child advocate appointed under this section shall have timely access to all materials necessary to effectively advocate for the best interests of the unaccompanied noncitizen child concerned, including the child's complete Office of Refugee Resettlement case file and records. (B) Request On request by such a child advocate, the Director shall provide a complete copy of an unaccompanied noncitizen child's Office of Refugee Resettlement case file and records not later than 72 hours after the request is made. (4) Best interest recommendations A child advocate appointed under this section shall submit a best interest recommendation based on law, policy, medical or behavioral health, and relevant social science research to any Federal or State agency making a decision with respect to the best interests of an unaccompanied noncitizen child, including— (A) the Department of Health and Human Services; (B) the Department of Justice; (C) the Department of Homeland Security