N.Y.C. Admin. Code § 13-128: § 13-128 Contributions of the city and their use; pension reserve fund.

The pension reserve fund shall be the fund from which shall be paid all pensions, and all pensions-providing-for-increased-take-home-pay, and all benefits in lieu of pensions, and all benefits in lieu of pensions-providing-for-increased-take-home-pay, if any, allowable by the city on account of the city-service of members to whom prior-service is not allowable as provided in this chapter. Should any pension or pension-providing-for-increased-take-home-pay payable from such pension reserve fund be cancelled, the pension reserve or reserve-for-increased-take-home-pay thereon shall thereupon be transferred from the pension reserve fund to the contingent reserve fund. Should any pension or pension-providing-for-increased-take-home-pay payable from such fund be reduced, the amount of the annual reduction in such pension or pension-providing-for-increased-take-home-pay shall be paid annually into the contingent reserve fund during the period of such reduction.