(1) In section 101(1) of the Principal Act, for "owner" substitute "operator".
(2) In section 101(3) of the Principal Act, for "owner" (where twice occurring) substitute "operator".
(3) In section 101(4)(b) and (5A) of the Principal Act, for "owner" substitute "operator".
(4) In section 101(5A) of the Principal Act, for "6" substitute "12".