115.10. An employee who participates in the retirement plan established by the Government under section 10 and who, in accordance with that plan, elects to participate in this plan, shall be credited, for pension purposes, with the years and parts of a year of service credited under the retirement plan established by the Government in accordance with that section.
The years and parts of a year of service credited under that plan shall be credited, for pension purposes, to the employee who, for the reasons provided for in that plan, ceases to hold pensionable employment under that plan and holds, within 180 days, pensionable employment under this plan.
The first and second paragraphs apply to the employee if the employee has not received a refund of the employee’s contributions or if the service credited to the employee is not recognized under this plan.