(1) The SG minimum contribution in respect of an eligible employee on a contribution day during the eligible employee's relevant period of employment is 4% of the fortnightly rate of salary that, for the purposes of section 46, was payable to the eligible employee on the anniversary of his or her birth immediately preceding the contribution day.
(2) CSC may vary the percentage mentioned in subsection (1) by determination.
(3) In so determining, CSC is to have regard to the charge percentage as specified in subsection 19(2) of the Superannuation Guarantee (Administration) Act 1992 .
(4) A determination by CSC under subsection (2) takes effect on:
(a) a day stated in the determination; or
(b) if no day is stated--the day of the making of the determination;
and CSC must cause a copy of the determination to be published in the Gazette .