Judgment of the Court of 23 May 2000 in Case C-209/98 (reference for a preliminary ruling from the Østre Landsret): Entreprenørforeningens Affalds/Miljøsektion (FFAD) v Københavns Kommune (Article 90 of the EC Treaty (now Article 86 EC) in conjunction with Articles 34 of the EC Treaty (now, after amendment, Article 29 EC) and 86 of the EC Treaty (now Article 82 EC) — Directive 75/442/EEC — Regulation (EEC) No 259/93 — Special or exclusive right to collect building waste — Environmental protection)