 
        You can restore service credit forfeited as the result of a previous withdrawal of your Tier One/Tier Two member account if you have at least 10 years of Tier One/Tier Two creditable service Any period of time in which a participating public employer pays an active member a salary and the active member or the employer on the member's behalf pays contributions to PERS. For purposes of computing years of creditable service, full months and major fractions of a month are considered to be one-twelfth of a year and are added to all full years. One month of creditable service is earned for each major fraction of a month served. Creditable service includes all retirement credit received by a member. in the System
 Any period of time in which a participating public employer pays an active member a salary and the active member or the employer on the member's behalf pays contributions to PERS. For purposes of computing years of creditable service, full months and major fractions of a month are considered to be one-twelfth of a year and are added to all full years. One month of creditable service is earned for each major fraction of a month served. Creditable service includes all retirement credit received by a member. in the System The Public Employees Retirement System that includes the PERS Chapter 238 Program and the OPSRP IAP. since your re-employment. Service credit under a Loss-of-Membership account is not eligible for purchase. For every three months of service worked after re-employment in a covered position, you can restore one month of forfeited 
 service. You must purchase the service credit during the 90-day period before your effective date of retirement. The Purchase Letter you receive with your estimate must accompany payment.
 The Public Employees Retirement System that includes the PERS Chapter 238 Program and the OPSRP IAP. since your re-employment. Service credit under a Loss-of-Membership account is not eligible for purchase. For every three months of service worked after re-employment in a covered position, you can restore one month of forfeited 
 service. You must purchase the service credit during the 90-day period before your effective date of retirement. The Purchase Letter you receive with your estimate must accompany payment.
To take advantage of this provision, you cannot elect a lump-sum retirement option, and you must purchase the forfeited service credit with one payment.
Note: If you withdrew your Tier One/Tier Two member account and you received 150 percent of your member account balance, you may not restore the service credit forfeited by that withdrawal.