N.Y. Comp. Codes R. & Regs. tit. 21, § 461.6
(b) The following actions are Type I if they are undertaken, funded or approved by the Power Authority:
(3) construction of new nonresidential facilities which meet or exceed any of the following thresholds; or the expansion of existing nonresidential facilities by more than 50 percent of any of the following thresholds, provided that the expansion and the existing facilities, when combined, meet or exceed any threshold contained in this section: