(a) furnish vouchers in respect of the use of so much of the advance as is used to the authorising officer, and
(b) repay so much of the advance as is not used to a collector or receiver.
(2) Unless the administrative head, or a person authorised by him for the purpose, otherwise requires, an officer to whom an advance for travelling allowances or expenses is made shall, within the prescribed period—
(a) furnish an account, in accordance with Form 7, relating to the journey in respect of which the advance was made to the authorising officer; and
(b) repay so much of the advance as exceeds the amount shown in that account opposite to the word “Sub-total” to a collector or receiver.
(3) In subregulations (1) and (2), a reference to the prescribed period shall be read as a reference to—
(a) in the case of an advance of a kind referred to in subparagraph 42 (c) (i)—the period of 14 days immediately following the making of the advance;
(b) in the case of an advance of a kind referred to in subparagraph 42 (c) (ii) or paragraph 42 (e) that is made to an official bank account—the period of 14 days immediately following the making of the advance;
(c) in the case of an advance of a kind referred to in subparagraph 42 (c) (ii) or paragraph 42 (e) that is made in cash—the period of 7 days immediately following the making of the advance;
(d) in the case of an advance of camping allowances—the period of 14 days immediately following the expiration of the period of camping in relation to which the advance is made;
(e) in the case of an advance for travelling allowances or expenses in respect of a journey part of which is to be made in a country other than Australia but which is to terminate in Australia, the period of 28 days immediately following the completion of the journey;
(f) in the case of any other advance for travelling allowances or expenses—the period of 14 days immediately following the completion of the journey in relation to which it is made; or
(g) in the case of any other advance—the period of 3 days immediately following the date on which the service for which the advance is made is completed.
(4) Where a person to whom an advance (other than a standing advance) for travelling allowances or expenses, or of sustenance, living, meal, camping or other like allowances, is made does not make the journey or become entitled to any payment by way of the allowance for which the advance was made, that person shall repay the advance to a collector or receiver.
(5) Where a voucher or an account in accordance with Form 7 is furnished to the authorising officer, or a repayment is made in accordance with subregulation (1), (2) or (4), the authorising officer shall enter in his or her register of advances particulars of all adjustments of the advance that are required to be made by reason of the voucher or the account, certified by a certifying officer, or particulars of the repayment, as the case requires.
(6) Where particulars of an advance are entered in the register of advances kept by an authorising officer, other than the authorising officer by whom the payment of the account for the advance is authorised, subregulation (1) or (2) whichever is appropriate in respect of the advance, and subregulation (5) apply as if the reference in the subregulation to the authorising officer were read as a reference to the authorising officer in whose register of advances particulars of the advance are entered.