School counseling services shall support the mission and vision of the school and shall be available to all students K-12. The services shall address students' academic, career, personal and social development. Such services shall be aligned and integrated with the work of other professionals in the school setting, as well as those in other educational and human services. Staffing shall be filled by licensed school counselors and other student support personnel with sufficient staff to carry out the school counseling services, such as guidance counselors, Student Assistance Program counselors, home-school coordinators, English-as-a-Second-Language coordinators and school-based clinicians. At the elementary level, there shall be no more than 300 students per school counselor and other student support personnel. Schools with fewer than 300 students shall employ a school counselor and other student support personnel on a pro-rata basis. At the secondary level, there shall be no more than 200 students per school counselor and other student support personnel.