N.Y. Comp. Codes R. & Regs. tit. 6, § 617.9
(2) The lead agency will use the final written scope and the standards contained in this section to determine whether to accept the draft EIS as adequate with respect to its scope and content for the purpose of commencing public review. This determination must be made in accordance with the standards in this section within 45 days of receipt of the draft EIS. A draft EIS is adequate with respect to scope and content for the purpose of commencing public review if it meets the requirements of the final written scope, sections 617.8(g) of this Part and subdivision (b) of this section, and provides the public and involved agencies with the necessary information to evaluate project impacts, alternatives, and mitigation measures.
(4) When the lead agency has completed a draft EIS or when it has determined that a draft EIS prepared by a project sponsor is adequate for public review, the lead agency will determine whether or not to conduct a public hearing concerning the action. In determining whether or not to hold a SEQR hearing, the lead agency will consider: the degree of interest in the action shown by the public or involved agencies; whether substantive or significant adverse environmental impacts have been identified; the adequacy of the mitigation measures and alternatives proposed; and the extent to which a public hearing can aid the agency decision-making processes by providing a forum for, or an efficient mechanism for the collection of, public comment. If a hearing is to be held:
(5) Except as provided in subparagraph (i) of this paragraph, the lead agency must prepare or cause to be prepared, and must file a final EIS, within 45 calendar days after the close of any hearing or within 60 calendar days after the filing of the draft EIS, whichever occurs later.
(i) No final EIS need be prepared if:
(ii) The last date for preparation and filing of the final EIS may be extended under the following circumstances:
(7) Supplemental EISs.
(i) The lead agency may require a supplemental EIS, limited to the specific significant adverse environmental impacts not addressed or inadequately addressed in the EIS that arise from:
(ii) The decision to require preparation of a supplemental EIS, in the case of newly discovered information, must be based upon the following criteria:
(iii) If a supplement is required, it will be subject to the full procedural requirements of this subdivision except that scoping is not required.
(b) Environmental impact statement content.
(3) All draft and final EISs must be preceded by a cover sheet stating:
(5) The format of the draft EIS may be flexible; however, all draft EISs must include the following elements:
(iii) a statement and evaluation of the potential significant adverse environmental impacts at a level of detail that reflects the severity of the impacts and the reasonable likelihood of their occurrence. The draft EIS should identify and discuss the following impacts only where they are relevant and significant:
(v) a description and evaluation of the range of reasonable alternatives to the action that are feasible, considering the objectives and capabilities of the project sponsor. The description and evaluation of each alternative should be at a level of detail sufficient to permit a comparative assessment of the alternatives discussed. The range of alternatives must include the no action alternative. The no action alternative discussion should evaluate the adverse or beneficial site changes that are likely to occur in the reasonably foreseeable future, in the absence of the proposed action. The range of alternatives may also include, as appropriate, alternative: For private project sponsors, any alternative for which no discretionary approvals are needed may be described. Site alternatives may be limited to parcels owned by, or under option to, a private project sponsor;
(6) In addition to the analysis of significant adverse impacts required in subparagraph (b)(5)(iii) of this section, if information about reasonably foreseeable catastrophic impacts to the environment is unavailable because the cost to obtain it is exorbitant, or the means to obtain it are unknown, or there is uncertainty about its validity, and such information is essential to an agency's SEQR findings, the EIS must: This analysis would likely occur in the review of such actions as an oil supertanker port, a liquid propane gas/liquid natural gas facility, or the siting of a hazardous waste treatment facility. It does not apply in the review of such actions as shopping malls, residential subdivisions or office facilities.
(a) Environmental impact statement procedures.