13.—(1) If the Authority decides to exercise a power conferred by regulation 9, 10 or 11, it must give a decision notice to the society and any officer in relation to whom the power is exercised.
(2) A decision notice must —
(a)be in writing;
(b)give reasons for the decision to exercise the power concerned;
(c)set out the terms of, as the case may be, the enforcement notification, requirement for payment or direction for removal of an officer; and
(d)indicate that there is a right of appeal to the High Court or, as the case may be, the Court of Session and that any appeal must be brought within 28 days.
(3) Subject to regulation 14(4), a society which is subject to an enforcement notification or a direction for removal must comply with it.