Judgment of the Court (Sixth Chamber) 23 April 2002 in Case C-290/00 (Reference for a preliminary ruling from the Vestre Landsret): Niels Nygård v Svineafgiftsfonden, intervener: Ministeriet for Fødevarer, Landbrug og Fiskeri (National levy on pigs — Charge having an equivalent effect — Internal taxation — Levy scheme authorised by the Commission as State aid compatible with the common market — Levy incompatible with provisions of the EC Treaty other than Articles 92 of the EC Treaty (now, after amendment, Article 87 EC) and 93 of the EC Treaty (now Article 88 EC) — Discretion of the national courts)