Power to vary provisions
225. The Department may by order vary—
(a)the provisions of Articles 216(1) and (2) and 221(1) (requirements as to consultation and notification), and
(b)the periods referred to at the end of Article 217(4) (maximum protected period);
but no such order shall be made which has the effect of reducing to less than 30 days the periods referred to in Articles 216(2) and 221(1) as the periods which must elapse before the first of the dismissals takes effect.