(a) Each local or regional board of education shall employ the number of certified personnel, licensed personnel, supervisory personnel and support personnel necessary to implement the special education and related services required in each child’s individualized education program. All personnel in supervisory positions in special education and related services shall hold intermediate administrators’ certificates and shall be appropriately certified or licensed, or both, as specified in the regulations of the State Board of Education. Personnel hired after September 1, 1980, for supervisory positions in special education and related services not required by the regulations of the State Board of Education shall be appropriately certified or licensed, or both, in special education or one of the categories of pupil personnel services. For purposes of this subsection the categories of pupil personnel services are school social work services, school psychological services, school speech and hearing services, school guidance and counseling services and school health services.

(b) Each local and regional board of education shall be eligible for reimbursement pursuant to § 10-76g for expenditures for the employment of at least one full-time special education supervisor, certified or licensed, or both, in special education or one of the categories of pupil personnel services. A board of education shall not be eligible for such reimbursement for expenditures for the employment of such supervisors in excess of the following ratios: (1) One supervisor to the equivalent of twenty-three to forty-four full-time special education personnel; (2) two supervisors to the equivalent of forty-five to seventy-four such personnel; (3) one additional supervisor for every additional thirty-three such personnel.

(c) Whenever two or more boards of education combine resources to employ a single administrative head, the combined total of special education personnel under those boards of education shall be the number used for purposes of the ratios in subsection (b) of this section.