18 CFR § 2.80 - Detailed environmental statement.
(a) It will be the general policy of the Federal Energy Regulatory Commission to adopt and to adhere to the objectives and aims of the National Environmental Policy Act of 1969 (NEPA) in its regulations promulgated for statutes under the jurisdiction of the Commission, including the Federal Power Act, the Natural Gas Act and the Natural Gas Policy Act. The National Environmental Policy Act of 1969 requires, among other things, all Federal agencies to include a detailed environmental statement in every recommendation or report on proposals for legislation and other major Federal actions significantly affecting the quality of the human environment.
(b) Therefore, in compliance with the National Environmental Policy Act of 1969, the Commission staff will make a detailed environmental statement when the regulatory action taken by the Commission under the statutes under the jurisdiction of the Commission will have a significant environmental impact. The specific regulations implementing NEPA are contained in part 380 of the Commission's regulations.