If a person was given a no objection notification in relation to an action, the Treasurer may decide to vary the no objection notification by:
(a) revoking a condition; or
(b) imposing a new condition; or
(c) varying an existing condition; or
(d) varying the information specified under section 76;
if the Treasurer is satisfied that the variation is reasonably necessary for purposes relating to eliminating or reducing the national security risk relating to the action.