Notwithstanding any other provision of this paragraph, in the case of a member of the New York state teachers' retirement system, commencing upon attainment of age sixty-two if such member's date of membership is prior to April first, two thousand twelve or attainment of age sixty-three if such member's date of membership is on or after April first, two thousand twelve, the benefit otherwise provided pursuant to this paragraph shall be reduced while the member is in service to ninety-six per centum of the benefit otherwise payable, and each year thereafter the benefit payable shall be reduced by an amount equal to four per centum per year of the original benefit otherwise payable, but not below sixty per centum of the original benefit otherwise payable. In the case of a member of the New York city employees' retirement system, the New York city board of education retirement system or the New York city teachers' retirement system, commencing upon attainment of age sixty-one, the benefit otherwise provided pursuant to this paragraph shall be reduced while the member is in service to ninety-seven per centum of the benefit otherwise payable and each year thereafter the benefit payable shall be reduced by an amount equal to three per centum per year of the original benefit otherwise payable, but not below seventy per centum of the original benefit otherwise payable. In the case of any member of the New York state and local employees' retirement system who is permitted to retire without regard to age, commencing upon attainment of age sixty-two if such member's date of membership is prior to April first, two thousand twelve or attainment of age sixty-three if such member's date of membership is on or after April first, two thousand twelve, the benefit otherwise provided pursuant to this paragraph shall be reduced while the member is in service to ninety-seven per centum of the benefit otherwise payable, and each year thereafter the benefit payable shall be reduced by an amount equal to three per centum per year of the original benefit otherwise payable, but not below seventy per centum of the original benefit otherwise payable. In the case of any other member of the New York state and local employees' retirement system, commencing upon attainment of age sixty-two if such member's date of membership is prior to April first, two thousand twelve or attainment of age sixty-three if such member's date of membership is on or after April first, two thousand twelve, the benefit otherwise provided pursuant to this paragraph shall be reduced while the member is in service to ninety-six per centum of the benefit otherwise payable, and each year thereafter the benefit payable shall be reduced by an amount equal to four per centum per year of the original benefit otherwise payable, but not below sixty per centum of the original benefit otherwise payable. Upon retirement from any retirement system, the benefit in force shall be reduced by fifty per centum; upon completion of the first year of retirement, the benefit in force at the time of retirement shall be reduced by an additional twenty-five per centum, and upon commencement of the third year of retirement, the benefit shall be ten per centum of the benefit in force at age sixty, if any, or at the time of retirement if retirement preceded such age; provided, however, the benefit in retirement shall not be reduced below ten per centum of the benefit in force at age sixty, if any, or at the time of retirement if retirement preceded such age. Notwithstanding any other provision of this paragraph to the contrary, the benefit for a retiree from the New York state and local employees' retirement system , the New York state teachers' retirement system, the New York city employees' retirement system, the New York city board of education retirement system or the New York city teachers' retirement system shall not be reduced below ten per centum of the benefit in force at the time of retirement.
N.Y. Retire. and Soc. Sec. Law § 508