37In that regard, there being no harmonisation of the national mechanisms for enforcement, the rules for giving effect to the grounds of objection allowed in mortgage enforcement proceedings and the powers conferred on the court hearing the enforcement proceedings to analyse the lawfulness of the terms of contracts concluded with consumers are a matter for the national legal order of the Member States, in accordance with the principle of the procedural autonomy of the latter, on condition, however, that they are no less favourable than those governing similar domestic actions (principle of equivalence) and do not make it in practice impossible or excessively difficult to exercise the rights conferred on consumers by EU law (principle of effectiveness) (see, by analogy, Aziz, paragraph 50).
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