; (3) make and document prompt, active, and continuous efforts towards family reunification and release; and (4) work diligently— (A) to review family reunification applications from prospective sponsors; and (B) to assist prospective sponsors in completing such applications and complying with sponsor requirements. (b) Preference for release The Director may release an unaccompanied noncitizen child from the custody of the Secretary to a sponsor who is, in the order of preference, any of the following: (1) A parent. (2) A legal guardian. (3) An adult relative. (4) An adult individual, or an entity, designated by the parent or legal guardian of the unaccompanied noncitizen child as capable and willing to care for the child's well-being, which designation is supported by— (A) a declaration signed by the parent or legal guardian under penalty of perjury before an immigration or consular officer; or (B) such other document that makes such a designation and establishes the affiant’s parentage or guardianship. (5) A licensed program willing to accept legal custody of the child. (6) An adult individual or entity seeking custody of the child. (c) Timelines for reunification The Director shall use the information collected under, and data requirements described in, section 602(b)— (1) to determine the characteristics that exert significant effect on the reunification of unaccompanied noncitizen children with a sponsor; (2) to establish categories of children who exhibit such characteristics, which categories shall distinguish between— (A) (i) children released to parents or legal guardians; and (ii) children released to other sponsors; and (B) (i) children who have home studies mandated by section 235 of the Trafficking Victims Protection Reauthorization Act of 2008 ( 8 U.S.C. 1232 ); (ii) children granted home studies through the discretion of the Director; and (iii) other children; (3) to establish timelines for reunification appropriate to each such category of children