(1) In section 331(1) of the Principal Act—
(a) in paragraph (a)(iii) for "306; and" substitute "306; or";
(b) after paragraph (a)(iii) insert —
"(iv) in the case of a Part 4A site, a notice to vacate given under section 317ZB in respect of successive breaches by the site tenant of the duty to pay rent; and";
(c) in paragraph (b) for "owner or caravan owner" insert "owner, caravan owner or site owner".
(2) In section 331(3) of the Principal Act after "tenant" (where twice occurring) insert "or site tenant".