1 CFR 601.17 - Supplemental Environmental Assessments.

Regulations last checked for updates: Nov 24, 2024

Title 1 - General Provisions last revised: Jan 01, 1900

View all text of Subpart E [§ 601.13 - § 601.17]

§ 601.17 - Supplemental Environmental Assessments.

(a) The NCPC shall prepare a supplemental EA if five or more years have elapsed since adoption of the EA and:

(1) There are substantial changes to the proposed action that are relevant to environmental concerns; or

(2) There are significant new circumstances or information that are relevant to environmental concerns and have a bearing on the proposed action or its impacts.

(b) The NCPC may supplement a Draft or Final EA at any time to further the purposes of NEPA.

(c) The NCPC shall prepare, circulate, and file a supplement to a Draft or Final EA, and adopt a FONSI in accordance with the requirements of §§ 601.15 and 601.16. If NCPC is not the Lead Agency, it shall proceed as outlined in § 601.16(b) and (c).

authority: 42 U.S.C. 4371; 40 CFR 1507.3

source: 82 FR 45424, Sept. 29, 2017; 82 FR 48609, Oct. 19, 2017, unless otherwise noted.

cite as: 1 CFR 601.17