90Cancellation of promotion

90 Cancellation of promotion (1) Before the promotion of an officer to a vacant office in an administrative unit takes effect, the head of service may cancel the promotion on reasonable grounds. (2) If a promotion of an officer under section 83 or section 87 that has not taken effect stops being a promotion, because of a change in rates of salary, the promotion is taken to be cancelled. (3) If a promotion is cancelled, or is taken to be cancelled under this section, any appeal under section 84 or review under section 86 against the promotion lapses on the day of the cancellation.