BENEFITED EMPLOYEES AND ACCRUAL OF PTO AND SICK LEAVE. The term “Benefited Employees,” for purposes of this Agreement, is defined to include only full-time and part-time employees and does not include per diem employees. For benefited employees, Paid Time Off and Sick Leave shall be accrued based upon hours paid and call-off (drop time). An employee who takes a leave of absence in accordance with Article 20 shall cease to accrue Sick Leave and PTO upon exhaustion of the sick leave.