following apply to the design and preparation of EISs:
agency shall prepare EISs that are analytic rather than encyclopedic.
agency shall discuss the impacts of a proposed action in a level of detail that
is proportionate to their significance. For other than significant issues, an
include enough discussion to show why more study is not warranted.
agency shall prepare with each draft and final EIS a brief summary that is
available for distribution separate from the EIS. The summary must describe:
proposed action being evaluated by the EIS, the impacts, and the alternatives;
(b) areas of controversy and major conclusions;
tradeoffs among the alternatives; and
agency's preferred alternative, if any.