N.Y. PEP Law § 48-C

§ 48-c. Assignment of future earnings by person unemployed; effect of\nloss of employment. If the assignor is not employed at the time he makes\nan assignment of future earnings, but is thereafter employed, his future\nearnings shall nevertheless become collectible by the assignee as\nprovided in this article upon the filing of the prescribed documents\nwith the employer. No assignment of future earnings shall become invalid\nby reason of the cessation of employment, or cessation of payment of\nearnings, but shall continue in effect, and may be applied to the\npayment of any future earnings from the same or other employment, in\naccordance with the provisions of this article, so long as the\nindebtedness secured by the assignment shall remain unpaid in whole or\nin part. If the assignor is re-employed by the same employer before the\nexpiration of ninety days from the termination of employment, the\nassignment shall continue to be collectible without further filing of\npapers. If the employee is re-employed on or after the expiration of\nsuch ninety days, the assignment shall again become collectible from the\nemployer as provided in section forty-eight-a only after copies of the\nassignment and the other documents specified in such section have been\nfiled with the employer following the re-employment.\n