Section 28C of the Principal Act is amended as follows:(a) by omitting the definition of fault from subsection (1) ;(b) by omitting from subsection (3) " Tortfeasors and Contributory Negligence Act 1954 " and substituting " Wrongs Act 1954 " ;(c) by omitting from subsection (4) " section 4 of the Tortfeasors and Contributory Negligence Act 1954 " and substituting "section 4 of the Wrongs Act 1954 " ;(d) by omitting from subsection (5)(b) " section 4 of the Tortfeasors and Contributory Negligence Act 1954 " and substituting "section 4 of the Wrongs Act 1954 " .