1 CFR § 601.18 - Requirement for and timing of an Environmental Impact Statement.

---
identifier: "/us/cfr/t1/s601.18"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "1 CFR § 601.18 - Requirement for and timing of an Environmental Impact Statement."
title_number: 1
title_name: "General Provisions"
section_number: "601.18"
section_name: "Requirement for and timing of an Environmental Impact Statement."
chapter_name: "NATIONAL CAPITAL PLANNING COMMISSION"
part_number: "601"
part_name: "IMPLEMENTATION OF THE NATIONAL ENVIRONMENTAL POLICY ACT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 4371; 40 CFR 1507.3"
regulatory_source: "82 FR 45424, Sept. 29, 2017; 82 FR 48609, Oct. 19, 2017, unless otherwise noted."
cfr_part: "601"
---


# 601.18 Requirement for and timing of an Environmental Impact Statement.

Prior to the Commission's approval of a major Federal action significantly affecting the quality of the human environment, the Executive Director shall prepare an EIS for a Non-Federal Agency application.