18. In rule 54.6(1)—
(a)at the end of subparagraph (b), omit “and”;
(b)in subparagraph (c), for the full stop substitute “; and”; and
(c)after subparagraph (c) insert—
“(d)where appropriate, the grounds on which it is contended that the claim is an Aarhus Convention claim.
(Rules 45.41 to 45.44 make provision about costs in Aarhus Convention claims.)”.