10.—(1) The Department shall prepare an environmental statement in any case to which regulation 9 applies.
(2) The environmental statement referred to in paragraph (1) must—
(a)be prepared by persons who have sufficient expertise to ensure the completeness and quality of the statement;
(b)contain a statement by the Department setting out how the requirement of paragraph (2)(a) has been complied with;
(c)be prepared, taking into account other environmental assessments with a view to avoiding duplication of assessment; and
(d)where an opinion is issued in accordance with regulation 11, be based on that opinion.
(3) The Department shall carry out consultations as referred to in regulation 12 and, where relevant, regulation 16.