(1) For the purposes of this Part, other than section 35:
(a) the salary of an employee or contributor shall be taken to be his annual salary;
(b) the salary of an employee or contributor who is paid salary at a rate other than an annual rate of salary shall be ascertained as prescribed; and
(c) where the salary of an employee or contributor is increased or decreased by reason of an award, order or determination made by the Public Service Arbitrator or by the Australian Conciliation and Arbitration Commission, the date on which the award, order or determination is made shall be deemed to be the date on which the salary of the employee or contributor is increased or decreased, as the case may be.
(2) In ascertaining the annual salary of an employee or contributor for the purposes of this section:
(a) subject to paragraph (b), if the employee or contributor is not receiving remuneration at the maximum rate applicable to his office or position, he shall be deemed to be receiving remuneration at that maximum rate; and
(b) if the employee or contributor has not attained the age of twenty - one years and occupies an office or position in respect of which the remuneration varies according to the age of the occupant, paragraph (a) does not apply, but, in the case of such an employee or contributor who has not attained the age of twenty years, he shall be deemed to be receiving remuneration at the rate that would be applicable to him if he had attained the age of twenty years.