How is creditable service achieved?
You earn creditable service towards your retirement allowance for the period during which you are contributing to the retirement system. For most full-time employees, this service time starts accruing the day you begin work and continues until the day you separate from service. However, if there is a period of time when you are off the payroll, you should consult with the retirement office as to how this will affect your total creditable service.
You earn creditable service towards your retirement allowance for the period during which you are contributing to the retirement system. For members of the System who work 20 or more hours per week on a permanent basis service time starts accruing the day you begin work and continues until the day you separate from service.