N.Y. Comp. Codes R. & Regs. tit. 9, § 2531.4
(b) Within 20 days after the filing of such request with the DHCR, the DHCR shall notify the tenant or tenants named on the lease that such tenant or tenants must provide the DHCR with such information as the DHCR and the DTF shall require to verify whether the total annual income exceeds $250,000, $175,000, or $200,000 whichever applies, in each such year.