29It is important to add that a new legal rule applies from the entry into force of the act introducing it, and that, while it does not apply to legal situations that arose and became definitive prior to that entry into force, it does apply immediately to the future effects of a situation which arose under the old law, and to new legal situations. The position is otherwise, subject to the principle of the non-retroactivity of legal acts, only if the new rule is accompanied by special provisions which specifically lay down its conditions of temporal application (judgment of 7 November 2018, O’Brien, C‑432/17, EU:C:2018:879, paragraph 27 and the case-law cited).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.