In general, you would qualify for Tier III status if you last joined TRS after July 26, 1976 and before September 1, 1983. You may also qualify if you transferred your Tier III membership from another eligible retirement system to TRS.

In addition, you can apply for reinstatement to your previous membership and tier status if you are in active membership status and previously lost your Tier III membership rights in TRS or another New York City or New York State public retirement system.

To apply for reinstatement, file a Membership/Tier Reinstatement Request Form (code SD42) with TRS. To effect the reinstatement, you must pay back the amount of contributions refunded when your membership ended, plus 5% interest compounded annually from the date of the refund to the date of repayment.