(a) Appropriations to the Department of Education on behalf of the school districts shall be in an aggregate form and shall be allocated to the districts in accordance with this title and the provisions of the annual Appropriations Act.
(b) In the event that any employee or officer receives a salary from more than 1 of the agencies receiving appropriations according to the form set forth in subsection (a) of this section, the total of such employee's or officer's salary from all such agencies shall be appropriated to the agency paying the principal portion of such salary. In no case shall a salary appropriation be made to more than one agency for the same employee or officer.
(c) The classification of employees and officers into the various categories set forth in Division I of subsection (a) of this section shall be determined by such employee's or officer's classification for salary to be paid under Chapter 13 of this title, except in the case of the Secretary and Deputy Secretary of Education.