Pursuant to the Certification of Results of an Election which took place on December 1, 1965 under the auspices of the American Arbitration Association and in accordance with the provisions of Public Act No. 298 of the 1965 Connecticut General Assembly, Connecticut General Statutes Section 10 -153b, (1965 as amended), the Board recognizes the Association as the exclusive representative of the certified professional employees of the Board (including, subject to the limitations set forth in Section 3 hereof, those certified employees w ith employment contracts of fixed duration of not less than a full normal work year) who are employed by the Board in a position requiring a teaching certificate; excluding the Superintendent of Schools, the Assistant Superintendents of Schools, temporary substitutes, certified professional employees who act for the Board in negotiations with certified professional personnel, employees directly responsible to the Board for personnel relations or budget preparation or both, all non -certified employees of the Board and all certified professional employees of the Board who are employed by the Board in positions requiring an intermediate administrator or supervisor certificate or the equivalent thereof. All Teachers absent as a result of a disability shall return to work within a reasonable period of time after the end of their disability provided that: 1.9.1 If, in the opinion of the Board, the end of the Teacher's period of disability or the date upon which the Teacher desires to return to school falls at a time in the pupil achievement reporting period which would be disruptive of the continuity or flow o f education for the pupils involved, the Board may delay the Teacher's return to work until the beginning of the next succeeding pupil achievement reporting period; however, any such extension of a Teacher's absence beyond the period of disability shall be with pay only if Teacher has sick leave available.