N.Y.C. Admin. Code § 13-330: § 13-330 Retirement allowance reserve fund for original plan members.

The retirement allowance reserve fund shall be the fund from which shall be paid all retirement allowances, and all benefits in lieu of retirement allowances, allowable by the pension fund to persons who retired as original plan members or to beneficiaries of such members on account of the city-service of original plan members. Such retirement allowances and benefits shall be paid from the contingent reserve fund in the event that the retirement allowance reserve fund shall be unable to make such payment. Should any retirement allowance payable from such retirement allowance reserve fund be cancelled, the retirement allowance reserve thereon shall thereupon be transferred from the retirement allowance reserve fund to the contingent reserve fund. Should any retirement allowance payable from the retirement allowance reserve fund be reduced, the amount of the annual reduction in such allowance shall be paid annually into the contingent reserve fund during the period of such reduction.