Notice of an applicationE+W
23.4—(1) The general rule is that a copy of the application notice must be served on each respondent.
(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)a court order.
(Rule 23.7 deals with service of a copy of the application notice)