322Third-party notice—fourth and subsequent parties

322 Third-party notice—fourth and subsequent parties (1) If a third party has filed a notice of intention to respond or defence, this part applies, with necessary changes, as if the third party were a (2) If a person included as a party (the fourth party) by a third party by notice (the fourth-party notice) files a notice of intention to respond or defence— (a) this part as applied by this rule has effect in relation to the fourth party and any other further person included (as fifth-party and so on successively); and Rule 322 (b) a reference in these rules to a third party includes a reference to the fourth party and any other further person included (as fifth- party and so on successively); and (c) a reference in these rules to a third-party notice includes a reference to the fourth-party notice and the notice including any other further person (a fifth-party notice and so on successively). Rule 400