(1) An eligible person may apply to the Civil and Administrative Tribunal for an administrative review under the Administrative Decisions Review Act 1997 (an
"external review" ) of a decision made, or taken to have been made, on an internal review.
(2) The application must be made within--(a) 28 days after the day on which the decision first came to the eligible person's notice, or(b) any longer time the Civil and Administrative Tribunal allows.