Section 4 of the Principal Act is amended as follows:

(a) by omitting from subsection (2) " Part 5 applies" and substituting " Part 5 and section 12 apply" ;

(b) by omitting from subsection (2) "before" and substituting "before or after" ;

(c) by inserting the following subsection after subsection (2) :

(3)  Part 6 , other than section 12 , and Parts 7 , 8 , 9 , 10 and 11 do not apply to a cause of action accrued before 4 July 2003.