; or (ii) (I) employing additional school social workers; or (II) hiring contractors to serve as school social workers only in a case in which— (aa) the local educational agency demonstrates to the Secretary that the agency— (AA) has not been able to employ a sufficient number of school social workers under subclause (I) to achieve such ratio despite strong and continuing efforts to recruit and employ school social workers; and (BB) hiring contractors is the only viable option to ensure students have adequate access to school social work services; and (bb) each such contractor meets the requirements of subparagraphs (A) and (B) of subsection (h)(2); and (B) to ensure that each school social worker who receives assistance under such grant provides the services described in subsection (d); and (2) may use the grant to reimburse school social workers who receive assistance under such grant for— (A) in the case of a school served by the agency in which the majority of students are higher risk students, to hire or retain additional school social workers in accordance with clauses (i) and (ii) of paragraph (1)(A) to achieve a ratio of not less than 1 school social worker for every 50 students; (B) travel expenses incurred during home visits and other school-related trips; (C) any additional expenses incurred by such social workers in rendering any service described in subsection (d); and (D) the cost of clinical social work supervision for such social workers. (d) Responsibilities of a school social worker A school social worker who receives assistance under a grant under this section shall provide the following services: (1) Identifying high-need students in each school that the social worker serves, and targeting services provided at the school to such students. (2) Providing students in each school that the school social worker serves, social work services to promote school engagement and improve academic outcomes, including— (A) counseling and crisis intervention; (B) trauma-informed services