j : (3) BO | . 3 , Ll alternatives related to different designs or details of the proposed action, which would present different environmental impacts (e.g., pollu- tion control equipment on a nuclear - plant). : In each case, the analysis of alternatives should be sufficiently detailed and rigorous to permit independent and comparative -evaluation of the benefits, costs and environmental risks of the proposed action and each alternative. B. Procedural Issues: Preparation and Circulation of Environmental Statements. 227 { i | ne wenn Pn et ee tt eee l. The “Pre-Draft" Stage. a - ae ee = 7 Op ae | a ee eet . eon A! wn — ne a ee ~— oe ~ ee EE “The issuesafseugsed “above‘WHER“EeFerence:-to0°. 1 J ie., the required©Gentent_ of impact statements-.—---—=== necessarily haveimplications for the procedures that agencies follow in preparing such statements. It has already been noted, for example, that agencies should make every effort to anticipate and discuss all major points of view on the impact of the proposed action in the draft state- __-ment itself... A related -procedural -question-con- ro ~ - cerns the extent to which agencies should formally seek advice from other agencies or members of the public prior to preparing a draft statement. ar - The CEQ guidelines do not require a formalized _"pre-draft" consultation process. Indeed, the reason for requiring a draft statement in the first place was in order to satisfy the "prior consultation" requirement found in §102 of the Act, which refers only to a "detailed statement." At the same time, however, in order for the draft - Statement to present an adequate basis for discussion and comment, it must provide a fairly thorough discussion of the impacts of the proposed action and alternatives. Where an agency lacks the expertise for making such an evaluation, it