For the purposes of this Directive:
(a) "First Directive": means Directive 79/267/EEC;
(b) "undertaking": - for the purposes of Titles I and II, means any undertaking which has received official authorization under Article 6 or Article 27 of the First Directive - for the purposes of Titles III and IV, means any undertaking which has received official authorization under Article 6 of the First Directive;
(c) "establishment": means the head office, an agency or a branch of an undertaking, having regard to Article 3;
(d) "commitment": means a commitment represented by one of the kinds of insurance or operation referred to in Article 1 of the First Directive;
(e) "Member State of the commitment": means the Member State where the policy-holder has his habitual residence or, if the policy-holder is a legal person, the Member State where the latter's establishment, to which the contract relates is situated;
(f) "Member State of establishment": means the Member State in which th