N.Y. Comp. Codes R. & Regs. tit. 10, § 97.14
(a) The purpose of this action is to simplify the tasks of determining whether or not a proposed action may have a significant effect on the environment by identifying actions or classes of actions that are likely to have a significant effect and those which will not have a significant effect. Because of the complex and varied nature of department actions, the lists in this section are not all-inclusive. The omission from the list of an action does not mean that it is exempt from this Part, nor does it mean that it is automatically an action requiring environmental impact statement preparation. The criteria set forth in 6 NYCRR 617.11 and section 97.13 of this Part shall be used to determine significance with respect to actions not listed in this section. The following system is used in this section:
(3) Unlisted. Actions or classes of actions, not excluded or exempt, not listed as a type I or type II action in this Part.
(b) Lists.
Note:
This Part does not apply to actions by private persons where ministerial department action is involved. The following lists are intended to cover only actions of the department or actions which must be approved, funded or otherwise acted upon by the department.
TYPE I
Type I actions or classes of actions are likely to, but will not necessarily, require preparation of environmental impact statements. The following are type I department actions or classes of actions:
(1) Project approval and/or construction funding of a facility subject to article 28 of the Public Health Law which meets or exceeds any of the following thresholds; or the expansion of a facility subject to article 28 of the Public Health Law by more than 50 percent of any of the following thresholds, providing that the expansion and existing facilities, when combined, meet or exceed any threshold contained in this section:
(2) Initial plan approval:
(5) Any structure exceeding 100 feet above original ground level in a locality without any zoning regulation to height.
TYPE II
The following type II actions or classes of action by the department are ministerial or have been determined not to have a significant effect on the environment and do not require environmental impact statements under this Part: