20It must first be borne in mind that FEU Treaty provisions relating to charges having equivalent effect and those relating to discriminatory internal taxation cannot be applied together, so that under the system of the Treaty the same measure cannot belong to both categories at the same time (judgment in Stadtgemeinde Frohnleiten and Gemeindebetriebe Frohnleiten, C‑221/06, EU:C:2007:657, paragraph 26).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.