Rule 18.5 Notice of an application
(1)
Subject to paragraph (2), a copy of the application notice must be served on—
(a)
each respondent;
(b)
in relation to proceedings under Part 11, the person who is, or, in the case of an application to start proceedings, it is intended will be, the subject of the proceedings; and
(c)
in relation to proceedings under Parts 12 and 14, the children's guardian (if any).
(2)
An application may be made without serving a copy of the application notice if this is permitted by—
(a)
a rule;
(b)
a practice direction; or
(c)
the court.
(Rule 18.8 deals with service of a copy of the application notice.)