Judgment of the Court (Sixth Chamber) 20 September 1988

In Case 136/87 REFERENCE to the Court under Article 177 by the Hoge Raad der Nederlanden (Supreme Court of the Netherlands) for a preliminary ruling in the proceedings pending before that court between

THE COURT (Sixth Chamber) composed of: O. Due, President of Chamber, T. Koopmans, K. Bahlmann, C. N. Kakouris and T. F. O'Higgins, Judges, Advocate General: J. L. Cruz Vilaça Registrar: D. Louterman, Administrator

after considering the observations submitted on behalf of Ubbink Isolatie BV, by L. Hardenberg, during the written and oral procedure, the Government of the Kingdom of the Netherlands, by H. J. Heinemann, during the written procedure, the Commission of the European Communities, by G. Antonio Caeiro, Agent, assisted by W. J. L. Calkoen, during the written and oral procedure,

having regard to the Report for the Hearing and further to the hearing on 21 January 1988,

after hearing the Opinion of the Advocate General delivered at the sitting on 8 March 1988,

gives the following

Judgment

Costs

1 Language of the Case: Dutch.