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COMMISSION NOTICE Guidance on the interpretation and application of Council Directive 93/13/EEC on unfair terms in consumer contracts · European Union
Like time-limits, limitation periods and the rules on the finality of decisions of courts or other bodies (res judicata) are linked to the principle of legal certainty. While both limitation periods and res judicata are legal obstacles for bringing proceedings, res judicata may also have the effect that a court is prevented from (re-)considering certain questions of substantive law, including at the appeal or enforcement stage, whether on the request of a party or of the court's own motion.
Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as adopted (Official Journal); later amendments are not incorporated in this text.