; nurse practitioners; other nurses; physician assistants; licensed social workers; mental health professionals; public health professionals; and dieticians within each border sector; and (2) for each sector, the degree to which responsibilities have been transferred from Department of Homeland Security personnel, particularly law enforcement personnel, for the provision of care of migrant families and unaccompanied alien children apprehended at the southern border of the United States to personnel under a memorandum of understanding or contract. 212. Additional u.s. customs and border protection personnel (a) Officers The Commissioner of U.S. Customs and Border Protection shall every fiscal year hire, train, and assign not fewer than 600 new officers above the level as of September 30 of the immediately preceding fiscal year until the total number of officers equals the requirements identified each year in the Workload Staffing Model developed by the Commissioner. (b) Investigators The Commissioner of U.S. Customs and Border Protection shall every fiscal year hire, train, and assign 30 new full-time investigators within the Office of Professional Responsibility of U.S. Customs and Border Protection until the total number of investigators enables the Office to fulfill its mission proportionate to the number of new personnel hired in accordance with subsection (a). (c) Traffic forecasts In calculating the number of Office of Field Operations officers needed at each port of entry through the Workload Staffing Model, the Office of Field Operations shall— (1) rely on data collected regarding the inspections and other activities conducted at each such port of entry