The Department shall serve children in the juvenile services system with programming that: ensures the safety of the community and the children served; holds delinquent children accountable to victims and communities; assists children to develop competencies to become successful members of society; delivers services on a regional basis through at least four operational regions; ensures that each committed facility owned by the Department serves no more than 48 children at one time; and ensures that each committed facility licensed by the Department serves no more than 48 children at one time, unless the Secretary finds good cause for a committed facility licensed by the Department to serve more than 48 children at one time; uses detention and committed facilities that are operationally separate from each other and that do not share common program space, including dining halls and educational or recreational facilities; and provides females with a range and quality of services and programs to meet their specific needs, including: diversion programs; community detention services and programs; and reentry services and programs. A region shall: include at least one secure facility used solely for children pending court disposition and children awaiting placement after disposition; except for specialized services as provided in subsection (c) of this section, include a number of committed facilities estimated to be necessary to diagnose, care for, train, educate, and properly rehabilitate every child from the region in the custody of the Department; and include a nonpublic facility only if the Department determines that the facility: has provided or will efficiently and effectively provide adequate care for the children placed in the facility; and has demonstrated or will demonstrate a record of success based on standards promulgated by the Department. The Department may place a child into a committed facility outside the child’s region if a determination is made by the Department that specialized services for the child require the placement in the best interests of the child.