(1)An adoption support plan ceases to have effect on the occurrence of whichever of the events in subsection (2) first occurs.
(2)Those events are—
(a)the preparation of a further adoption support plan in respect of the member or, as the case may be, members of the relevant family in relation to whom the adoption support plan was prepared,
(b)the date on which an appropriate child reaches the age of 18.
(3)In this section, “appropriate child” means a child—
(a)who has been placed for adoption, or
(b)who has been adopted,
and who is a member of the relevant family in relation to which, or to any members of which, the adoption support plan was prepared.