(a) Section 1505.1 of the NEPA regulations contains requirements to ensure adequate consideration of the environmental documents in agency decisionmaking. To implement these requirements, the RFO shall:

(1) Consider relevant environmental documents in evaluating actions proposed in plans and studies.

(2) Make relevant environmental documents, comments, and responses part of the record in any formal rulemaking or adjudicatory proceedings.

(3) Ensure that relevant environmental documents, comments and responses accompany the proposed actions through existing review processes.

(4) Consider only those alternatives encompassed by the range of alternatives discussed in the relevant environmental documents when evaluating proposals for agency action.

(5) Where an EIS has been prepared, consider the specific alternatives analyzed in the EIS when evaluating the proposal which is the subject of the EIS.

(b) The NEPA process begins at the earliest possible stage of the planning process and is completed when the RFO makes a finding of significant impact or a record of decision. In cases where the Chairman of a River Basin Commission, or regional Federal official has been designated as the RFO, and a plan or report is submitted to WRC for review and comment after completion of the NEPA process, the environmental documents incorporated into such plans or reports, or submitted with them, shall be fully considered by WRC when it prepares its views, comments, and recommendations for transmittal to the President and Congress. The RFO shall include the Findings of No Significant Impact, or the Record of Decision, with the documents submitted to WRC for review.