1.The competent authorities of Member States shall communicate to each other all information regarding:
(a)measures taken to implement this Regulation:
(b)changes in their legislation which are likely to affect the implementation of this Regulation.
2.For the purposes of implementing this Regulation, the authorities and institutions of Member States shall lend their good offices and act as though implementing their own legislation. The administrative assistance furnished by the said authorities and institutions shall, as a rule, be free of charge. However, the competent authorities of the Member States may agree to certain expenses being reimbursed.
3.The authorities and institutions of Member States may, for the purpose of implementing this Regulation, communicate directly with one another and with the persons concerned or their representatives.
4.The authorities, institutions and tribunals of one Member State may not reject claims or other documents submitted to them on the grounds that they are written in an official language of another Member State. They shall have recourse where appropriate to the provisions of Article 81 (b).
5.(a)Where, under this Regulation or under the implementing Regulation referred to in Article 98, the authorities or institutions of a Member State communicate personal data to the authorities or institutions of another Member State, that communication shall be subject to the legal provisions governing protection of data laid downby the Member State providing the data.
Any subsequent transmission as well as the storage, alteration and destruction of the data shall be subject to the provisions of the legislationon data protectionof the receiving Member State.
(b)The use of personal data for purposes other than those of social security shall be subject to the approval of the person concerned or in accordance with the other guarantees provided for by national legislation.