; and (B) make recommendations to the Secretary to ensure that such guidance conforms to current evidence and best practices in child welfare, child development, and childhood trauma. (3) Requirement The guidance developed under paragraph (1) shall incorporate the presumptions described in subsection (c). (4) Additional requirements (A) Evidence-based The guidance and training developed under this subsection shall incorporate evidence-based practices. (B) Training required (i) Initial training All agents and officers of designated agencies, upon hire, and annually thereafter, shall complete training on adherence to the guidance under this subsection. (ii) Annual training All Chief Patrol Agents and Area Port Directors, upon hire, and annually thereafter, shall complete— (I) training on adherence to the guidance under this subsection