N.Y. Comp. Codes R. & Regs. tit. 21, § 1157.4
(1) Applicants to the authority for a permit which will grant permission to the applicant to commence or engage in a project or activity may be requested by the authority, and if so requested, shall submit to the authority an environmental assessment in the form prescribed by the State Department of Environmental Conservation which describes and analyzes the environmental impact and effect of the proposed project or activity of the applicant in sufficient detail for the authority to determine:
(3) If in the judgment of the authority, the information provided in such assessment is not sufficient for the authority to make such determinations, the applicant will be required to furnish such additional information on the proposed project or activity deemed necessary for such determinations. An application shall be deemed incomplete until such information is furnished.
(b)
(a)