Commonwealth Consolidated Regulations Commonwealth Consolidated RegulationsWhere the salary or wages of a prescribed eligible employee on a particular day includes, or include, an amount in respect of shift allowance, so much of that salary or those wages as is equal to the amount in respect of shift allowance is not to be treated as salary for the purposes of the Act unless:
(a) the prescribed eligible employee has been an eligible employee for a continuous period of not less than 12 months immediately preceding that day; and
(b) shift allowance has been payable on a regular basis to the prescribed eligible employee during the period of 12 months immediately preceding that day.