(a) Notwithstanding any other provision of law, rule, or regulation, an employee of the District of Columbia Public Schools shall be:
(1) Classified as an Educational Service employee;
(2) Placed under the personnel authority of the Board of Education; and
(3) Subject to all Board of Education rules.
(b) School-based personnel shall constitute a separate competitive area from nonschool-based personnel who shall not compete with school-based personnel for retention purposes.