(1) The Principal Act is hereby amended by the substitution for Parts I to IV (inserted by section 3 of the Act of 1996) of the Second Schedule thereto of the Parts set out in Schedule A to this Act.
(2) This section shall come into operation -
(a) in so far as it relates to unemployment benefit, on the 5th day of June, 1997,
(b) in so far as it relates to disability benefit, health and safety benefit, injury benefit, disablement gratuity and disablement pension, on the 9th day of June, 1997,
(c) in so far as it relates to retirement pension, invalidity pension and a relevant payment by virtue of section 18(1)(a) of the Act of 1996, on the 12th day of June, 1997, and
(d) in so far as it relates to death benefit under section 60, 61, 62 or 63 of the Principal Act, old age (contributory) pension, widow's (contributory) pension, widower's (contributory) pension and orphan's (contributory) allowance, on the 13th day of June, 1997.