Except for proposals for legislation, as provided in CEQ Regulation ( 40 CFR 1502.9(c)), the Commission shall publish supplements to either draft or final environmental statements if:
(a) The Commission makes substantial changes in the proposed action that are relevant to environmental concerns; or
(b) There are significant new circumstances or information relevant to environmental concerns and bearing on the proposed action and its impacts. In the course of a trade regulation rule proceeding, the supplement will be placed in the rulemaking record.
This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.