On 8 November 2001, the fact that the exemption of a certain industry from the energy tax constituted State aid was clarified by the Court ruling on the Austrian energy tax rebate (Case C-143/99, Adria-Wien-Pipeline) [9].
novembril 2001 leidis Euroopa Kohus kohtuasja C-143/99 (Adria-Wien Pipeline) [9] puhul energiamaksu soodustuste kohta Austrias, et ühe kindla majandusharu energiamaksust vabastamine on riigiabi.