Commonwealth Consolidated RegulationsFor the purposes of subsection 210 (3) of the Act, the least favourable terms on which interest may be charged on overdue premiums is the interest rate worked out by the following formula:

where:
"XYB" is the mean, rounded to the lower 0.25%, of the 10 year Treasury Bond yields (as shown in figures supplied by the Reserve Bank of Australia) at the end of each of the 6 successive half financial years ended before the date of calculation.