Government Information (Public Access) Act 2009 No 52
83 Time within which internal review can be applied for
(1) Internal review of a decision cannot be applied for more than 20 working days after notice of the decision is given to the access applicant or (in the case of the deemed refusal by an agency to deal with an access application) more than 20 working days after the deemed refusal.
(2) An agency can agree to accept an application for internal review out of time.
(3) An agency must acknowledge receipt of an application for internal review by notice to the applicant for review given as soon as practicable after the agency receives the application and in any event within 5 working days after the application is received.