The Employer recognizes the Association as official representative of certificated personnel in the school system who are employees as defined in Article 1 Definitions, in addition to employees who function as teachers and are paid on the Teachers Salary Schedule, Job Family III. In addition, occupational therapists, physical therapists, and speech therapists shall be considered a part of the bargaining unit. Personnel who are substitutes (including those who are temporary appointees in positions reserved for employees under contract) and those holding any other position for which the school system requires certification in administration or supervision and/or for which the pay is calculated on the teachers salary schedule plus the administrators addendum including Acting and Intern are specifically excluded from this recognition.