You may qualify for a different tier if you switched tiers during a tier change period, or if you transferred your membership to TRS from another eligible retirement system. In addition, you can apply for reinstatement to your previous status if you are presently a TRS in-service member and lost your tier membership in TRS or another New York City or New York State public retirement system. You may obtain a Membership/Tier Reinstatement Request Form (SD42) in the “Tools” section of the TRS website at www.trsnyc.org or by calling TRS at 888-8NYCTRS. To be reinstated, you must pay back the contributions that were refunded when your membership ended, plus 5 percent interest from the date of the refund to the date of repayment. BERS members should call 929-305-3800.