Article 26 of Directive 79/267/EEC shall be replaced by the following:
'Article 26
1. Authorization granted to an assurance undertaking by the competent authority of its home Member State may be withdrawn by that authority if that undertaking:
(a) does not make use of the authorization within 12 months, expressly renounces it or ceases to carry on business for more than six months, unless the Member State concerned has made provision for authorization to lapse in such cases;
(b) no longer fulfils the conditions for admission;
(c) has been unable, within the time allowed, to take the measures specified in the restoration plan or finance scheme referred to in Article 24;
(d) fails seriously in its obligations under the regulations to which it is subject.
In the event of the withdrawal or lapse of the authorization, the competent authority of the home Member State shall notify the competent authorities of the other Member States accordingly and they shall take appropriate measures to