40 CFR § 1506.8 - Proposals for legislation.
(a) When developing legislation, agencies shall integrate the NEPA process for proposals for legislation significantly affecting the quality of the human environment with the legislative process of the Congress. Technical drafting assistance does not by itself constitute a legislative proposal. Only the agency that has primary responsibility for the subject matter involved will prepare a legislative environmental impact statement.
(b) A legislative environmental impact statement is the detailed statement required by law to be included in an agency's recommendation or report on a legislative proposal to Congress. A legislative environmental impact statement shall be considered part of the formal transmittal of a legislative proposal to Congress; however, it may be transmitted to Congress up to 30 days later in order to allow time for completion of an accurate statement that can serve as the basis for public and Congressional debate. The statement must be available in time for Congressional hearings and deliberations.
(c) Preparation of a legislative environmental impact statement shall conform to the requirements of the regulations in this subchapter, except as follows:
(1) There need not be a scoping process.
(2) Agencies shall prepare the legislative statement in the same manner as a draft environmental impact statement and need not prepare a final statement unless any of the following conditions exist. In such cases, the agency shall prepare and publish the statements consistent with §§ 1503.1 of this chapter and 1506.11:
(i) A Congressional committee with jurisdiction over the proposal has a rule requiring both draft and final environmental impact statements.
(iii) Legislative approval is sought for Federal or federally assisted construction or other projects that the agency recommends be located at specific geographic locations. For proposals requiring an environmental impact statement for the acquisition of space by the General Services Administration, a draft statement shall accompany the Prospectus or the 11(b) Report of Building Project Surveys to the Congress, and a final statement shall be completed before site acquisition.
(iv) The agency decides to prepare draft and final statements.
(d) Comments on the legislative statement shall be given to the lead agency, which shall forward them along with its own responses to the Congressional committees with jurisdiction.