40 C.F.R. § 1502.3 : Protection of Environment — COUNCIL ON ENVIRONMENTAL QUALITY — NATIONAL ENVIRONMENTAL POLICY ACT IMPLEMENTING REGULATIONS — ENVIRONMENTAL IMPACT STATEMENT — Statutory requirements for statements

As required by section 102(2)(C) of NEPA, environmental impact statements are to be included in every Federal agency recommendation or report on proposals for legislation and other major Federal actions significantly affecting the quality of the human environment.