(1) An application for internal review must be in writing and must be made:
(a) within 30 days, or such further period as the agency allows, after the day the decision is notified to the applicant for internal review (the internal review applicant ); or
(b) in the case of an access refusal decision of a kind mentioned in paragraph 53A(b), (c) or (f), within whichever of the following is the longer period:
(i) 30 days, or such further period as the agency allows, after the day the decision is notified to the internal review applicant;
(ii) 15 days after the day the access referred to in that paragraph was given (or purported to be given).
(2) A decision by an agency to allow a further period for making an application may be made whether or not the time for making such an application has already expired.
(3) The agency's power to allow a further period for making an application may be exercised by an officer of the agency who is:
(a) acting within the scope of authority exercisable by him or her; and
(b) acting in accordance with arrangements approved by the responsible Minister or principal officer of the agency.