Call Back. An employee who has left his/her place of employment after having completed work on his/her regular tour of duty and is called back to work prior to the commencement of his/her next scheduled tour of duty shall receive a minimum of four (4) hours pay at his/her regular hourly overtime rate. This Section shall not apply to any employee who is called in to start his/her shift early and continues to work that shift or continues to work beyond their regularly scheduled hours. This section shall not apply to employees asked to work a weekend, when their normally scheduled hours are on the first shift Monday through Friday, if Management notifies the employees no less than 48 hours in advance or there is an emergent need, as determined by the VCAF, based upon health, safety or the protection of property. If an employee on the first shift Monday through Friday schedule is notified less than 48 hours in advance to work a weekend shift, the employee will be compensated at time and one-half.