; (II) to investigate complaints; (III) to coordinate with State licensing entities; and (IV) to identify and address differences among State child protection laws. (ii) Locations (I) In general The regional offices required under clause (i) shall be established in the following locations: (aa) 1 regional office in Texas. (bb) 1 regional office in Arizona. (cc) 1 regional office in California or a State in the Northwest. (dd) 1 regional office in a State in the Midwest. (ee) 1 regional office in a State in the Mid-Atlantic. (ff) 1 regional office in a State in the Northeast. (gg) 1 regional office in a State in the Southeast. (II) Additional locations The Ombudsperson may make a recommendation to the Secretary with respect to the location of any additional regional office. (iii) Appointment of deputies The Ombudsperson shall appoint a full-time deputy for each regional office, who shall serve at the Ombudsperson's discretion. (iv) Applicability of other provisions The regional offices established under this subparagraph shall have the same access to facilities and records, maintain the same rights, roles, and responsibilities, and be subject to the same confidentiality requirements as the Office. (B) Hiring (i) In general The Ombudsperson shall hire to carry out the functions of the Office necessary personnel, including clerical personnel, who shall serve at the discretion of the Ombudsperson. (ii) Subject matter experts The personnel hired under clause (i) shall include relevant subject matter experts, including— (I) legal advocates or specialists in the fields of child and family welfare, immigration, and human rights; (II) pediatricians; (III) child and adolescent psychiatrists and psychologists; (IV) social workers; (V) data analysts with demonstrable expertise in child welfare or immigration