The Member States or the Commission shall instigate or together undertake any study of employment or unemployment which they consider necessary for freedom of movement for workers within the Union.

The central employment services of the Member States shall cooperate closely with each other and with the Commission with a view to acting jointly as regards the clearing of vacancies and applications for employment within the Union and the resultant placing of workers in employment.

To this end the Member States shall designate specialist services which shall be entrusted with organising work in the fields referred to in the second subparagraph of paragraph 1 and cooperating with each other and with the departments of the Commission.

The Member States shall notify the Commission of any change in the designation of such services and the Commission shall publish details thereof for information in the Official Journal of the European Union.

The Member States shall send to the Commission information on problems arising in connection with the freedom of movement and employment of workers and particulars of the state and development of employment.

The Commission, taking the utmost account of the opinion of the Technical Committee referred to in Article 29 (‘the Technical Committee’), shall determine the manner in which the information referred to in paragraph 1 of this Article is to be drawn up.

In accordance with the procedure laid down by the Commission taking the utmost account of the opinion of the Technical Committee, the specialist service of each Member State shall send to the specialist services of the other Member States and to the European Coordination Office referred to in Article 18 such information concerning living and working conditions and the state of the labour market as is likely to be of guidance to workers from the other Member States. Such information shall be brought up to date regularly.

The specialist services of the other Member States shall ensure that wide publicity is given to such information, in particular by circulating it among the appropriate employment services and by all suitable means of communication for informing the workers concerned.