5.2. Where, in a year, an employee ceases to hold the reference employment retained pursuant to section 5.1 and, before the end of that year, the employee simultaneously holds again more than one employment under the plan, that employee’s contributory period is established, for the part of the year where more than one employment is simultaneously held, by retaining as new reference employment from among the employments then held the employment held on the day before the day on which more that one employment begin to be simultaneously held or, if none of those employments is held on that preceding day, the employment with the highest annual basic salary.
Where, in a year, an employee ceases to hold the reference employment retained pursuant to section 5.1 and continues to simultaneously hold more than one employment under the plan, that employee’s contributory period is established, for the part of the year that begins on the first day following the day on which the employee ceases to hold the reference employment, by retaining as new reference employment from among the employments held on that first day the employment with the highest annual basic salary.