Judgment_paragraph 83 · CY and Others v Caixabank SA and Banco Bilbao Vizcaya Argentaria SA (C-224/19, C-259/19)

83In that regard, it should be noted that, in the absence of specific EU legislation in this area, the rules implementing consumer protection, provided for in Articles 6(1) and 7(1) of Directive 93/13, are a matter for the domestic legal order of the Member States, in accordance with the principle of the procedural autonomy of the latter. However, those rules must not be less favourable than those governing similar domestic actions (principle of equivalence); nor may they be framed in such a way as to make it in practice impossible or excessively difficult to exercise the rights conferred by Community law (principle of effectiveness) (see, to that effect, inter alia, judgment of 26 October 2006, Mostaza Claro, C‑168/05, EU:C:2006:675, paragraph 24 and the case-law cited).