1. A Member State may refuse to apply or withdraw the benefit of all or any part of the provisions of Articles 4 to 14 where it appears that one of the operations referred to in Article 1:
(a) has as its principal objective or as one of its principal objectives tax evasion or tax avoidance; the fact that the operation is not carried out for valid commercial reasons such as the restructuring or rationalisation of the activities of the companies participating in the operation may constitute a presumption that the operation has tax evasion or tax avoidance as its principal objective or as one of its principal objectives;
(b) results in a company, whether participating in the operation or not, no longer fulfilling the necessary conditions for the representation of employees on company organs according to the arrangements which were in force prior to that operation.
2. Paragraph 1(b) shall apply as long as and to the extent that no Community law provisions containing equivalent rules on rep
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