in relation to a—
a) | defined benefit category of a means payment by the employer of less than the contribution rate the valuator recommends be payable by the employer, taking into account the circumstances of the fund and ignoring any surplus or deficit; or |
b) | defined contribution category of a fund, means payment by the employer of less than the employer contribution rate defined in the rules prior to application of any credit balance in any employer reserve account as in the rules or employer surplus account; |