N.Y.C. Admin. Code § 13-672: § 13-672 Supplemental retirement allowances.

a. Fire retired employees. Notwithstanding any other provision of law, any fire retired employee shall be entitled to a supplemental pension payment to be known as a supplemental retirement allowance payable annually, in monthly installments in an amount which, together with pension or retirement allowance (exclusive of extra service increments granted pursuant to section 13-358 of this title or any other similar provision of law), received by such fire retired employee, shall be equal to one-half of his or her annual compensation earned at the date of his or her retirement if retired for service, and provided, however, if disabled fire retired employee, the retirement allowance or pension shall be computed on the basis of annual compensation earnable on the date of retirement for disability of such employee pursuant to the provisions of section 13-362 or 13-364 of subchapter two of chapter three of this title.

b. For the purpose only of determining the amount of additional pension contribution by the city that may be required to provide said person with a retirement allowance equal to the one-half of his or her annual compensation earned on the date of his or her retirement for service retirement or to provide a disabled fire retired employee with a retirement allowance computed on the basis of annual compensation earnable on the date of the retirement for disability of such employee pursuant to the provisions of sections 13-362 and 13-364 of subchapter two of chapter three of this title, the person's annuity shall be computed as it would have been.

(A) If it were not reduced by the actuarial equivalent of any outstanding loan,

(B) If it were not increased by the actuarial equivalent of any additional contributions,

(C) If it were not reduced by reason of the member's election to decrease his or her or her annuity contributions in order to apply the amount of such reduction in payment of his or her contributions for old age and survivors insurance coverage,

(D) As it would be without any optional modification.

c. The supplemental retirement allowances provided for in this article shall not be paid to any fire retired employee for any period during which the pension or retirement allowances of such fire retired employee, or any part thereof is forfeited or suspended pursuant to law.