§ 516. Vesting. a. A member who has five or more years of credited service upon termination of employment shall be entitled to a deferred vested benefit as provided herein.

b. The deferred vested benefit of general members, except for general members in the uniformed correction force of the New York city department of correction or uniformed personnel in institutions under the jurisdiction of the department of corrections and community supervision as defined in subdivision i of section eighty-nine of this chapter, with twenty or more years of credited service shall be a pension commencing at normal retirement age equal to one-fiftieth of final average salary times years of credited service, not in excess of thirty years, less fifty percent of the primary social security retirement benefit, as provided in section five hundred eleven of this article. The deferred vested benefit of general members, except for general members in the uniformed correction force of the New York city department of correction or uniformed personnel in institutions under the jurisdiction of the department of corrections and community supervision as defined in subdivision i of section eighty-nine of this chapter, with less than twenty years of credited service shall be a pension commencing at normal retirement age equal to one-sixtieth of final average salary times years of credited service, less fifty percent of the primary social security retirement benefit, as provided in section five hundred eleven of this article. Such deferred vested benefit may be paid in the form of an early service retirement benefit, or may be postponed until after normal retirement age, in which event the benefit will be subject to reduction or escalation as provided in subdivision c of section five hundred four of this article.

c. The deferred vested benefit of police/fire members, New York city police/fire revised plan members, New York city uniformed correction/sanitation revised plan members or investigator revised plan members shall be a pension commencing at early retirement age equal to two and one-tenths percent of final average salary times years of credited service, less fifty percent of the primary social security retirement benefit commencing at age sixty-two, as provided in section five hundred eleven of this article. A police/fire member, a New York city police/fire revised plan member, a New York city uniformed correction/sanitation revised plan member or investigator revised plan member may elect to receive his vested benefit commencing at early retirement age or age fifty-five. If the vested benefit commences before early retirement age, the benefit shall be reduced by one-fifteenth for each year, if any, that the member's early retirement age is in excess of age sixty, and by one-thirtieth for each additional year by which the vested benefit commences prior to early retirement age. If such vested benefit is deferred until after such member's normal retirement age, the benefit shall be computed and subject to annual escalation in the same manner as provided for an early retirement benefit pursuant to subdivision c of section five hundred five of this article.

d. The deferred vested benefit of general members in the uniformed correction force of the New York city department of correction, who are not entitled to a deferred vested benefit under subdivision d of section five hundred four-a of this article or under subdivision d of section five hundred four-b of this article or under subdivision d of section five hundred four-d of this article, or of general members in the uniformed personnel in institutions under the jurisdiction of the department of corrections and community supervision, as defined in subdivision i of section eighty-nine of this chapter, with twenty or more years of credited service shall be a pension commencing at normal retirement age equal to one-fiftieth of final average salary times years of credited service, not in excess of thirty years, or for members who first become members of the New York state and local employees' retirement system on or after April first, two thousand twelve, a pension equal to the sum of thirty-five per centum and one-fiftieth of final average salary for each year of service in excess of twenty, but not in excess of thirty, times final average salary times years of credited service. The deferred vested benefit of general members in the uniformed correction force of the New York city department of correction, who are not entitled to a deferred vested benefit under subdivision d of section five hundred four-a of this article or under subdivision d of section five hundred four-b of this article or under subdivision d of section five hundred four-d of this article, or of general members in the uniformed personnel in institutions under jurisdiction of the department of corrections and community supervision, as defined in subdivision i of section eighty-nine of this chapter, with less than twenty years of credited service shall be a pension commencing at normal retirement age equal to one-sixtieth of final average salary times years of credited service. Such deferred vested benefit may be paid in the form of an early service retirement benefit, or may be postponed until after normal retirement age, in which event the benefit will be subject to reduction or escalation as provided in subdivision c of section five hundred four of this article.

e. In no event shall the vested retirement allowance payable without optional modification be less than the actuarial equivalent of the total which results from the member's contributions accumulated with interest at five percent per annum compounded annually to the date of retirement.