Paragraph 15.4

Pay for a day of job security reserve taken in accordance with this Article shall be equal to pay for 8 hours at the Basic Rate for the job to which the employee was regularly assigned immediately before such day is taken;

provided that in the case of an employee with at least 15 years' continuous service with the Company at the time a day of job security reserve is taken pay therefore shall be equal to pay for 8 hours at the Performance Rate for the job to which the employee was regularly assigned immediately before such day is taken.