If:
(a) a transport security program for an aviation industry participant is in force; and
(b) the Secretary is no longer satisfied that the program adequately addresses the relevant requirements under Division 4; and
(c) the Secretary is satisfied that it is not appropriate to direct the participant to:
(i) vary the program under section 21; or
(ii) revise the program under section 23;
the Secretary must, by written notice given to the participant, cancel the approval of the program.