Yes—provided you did not lose your TRS membership rights. This type of service is known as Amann service. If you are a Tier I or II member, you should submit a written request to TRS to claim credit for this service; in most cases, purchase is not required. If you are a Tier III, IV, or VI member, you should submit a Cost Letter Request Form (code SB64); purchase of this service credit is generally required.

Regardless of your tier, before you can receive credit for your Amann service, your service must be verified by TRS and you must return to active service in a TRS-eligible position. In addition, if you are a Tier III, IV, or VI member, you must have attained two full years of service credit since becoming a TRS member.