(a) Each school medical advisor shall work with the local or regional board of education that appointed such school medical advisor and the board of health or health department for the school district under the jurisdiction of such board to (1) plan and administer the health program for each school, (2) advise on the provision of school health services, (3) provide consultation on the school health environment, and (4) perform any other duties that may be agreed on by the school medical advisor and the local or regional board of education that appointed such school medical advisor.
(b) With the approval of the local or regional board of education, the school medical advisor may establish a diagnostic and treatment program for health and dental services to pupils, provided no costs incurred for such health service shall be charged to the local or regional board of education without approval of such board.