Commonwealth Consolidated Acts(1) If the factor ascertained under subsection 6A(5) of the Excise Tariff Act 1921 in relation to a relevant period commencing on or after 1 August 1992 is greater than one, then, subject to subsection (2), the relevant rate for the period is:
(a) the rate, calculated to 3 decimal places, ascertained by multiplying the relevant rate at the end of the last preceding relevant period by the factor; or
(b) if that rate would, if it were calculated to 4 decimal places, end in a number greater than 4--the rate increased by 0.001.
(2) If:
(a) an index number necessary for the calculation of the factor to be ascertained under subsection 6A(5) of the Excise Tariff Act 1921 in relation to a relevant period is not published by the Australian Statistician at least 5 days before the first day of the period; and
(b) the factor ascertained in relation to the period is greater than one;
then:
(c) subsection (1) applies only in relation to the part of the period commencing on the fifth day after the day on which the index number is published; and
(d) the relevant rate for the part of the period to which subsection (1) does not apply is the relevant rate at the end of the last preceding period.