[F1Revision of decisionsN.I.
1. Article 18 shall apply in relation to—N.I.
(a)any decision of the Department with respect to a departure direction, a reduced benefit direction or a person's liability under Article 40;
(b)any decision of the Department under Article 19 as extended by paragraph 2; and
(c)any decision of an appeal tribunal on a referral under Article 28D(1)(b),
as it applies in relation to any decision of the Department under Article 13, 14 or 19.]