34It follows from the case-law of the Court referred to in paragraphs 31 to 33 of the present judgment that, in order to ascertain the temporal applicability of a new EU rule to a situation which arose under the old rule that the new rule replaces, it is necessary to determine whether the effects of that situation had been exhausted before the entry into force of the new rule, in which case that situation should be regarded as a situation arising prior to the entry into force of that new rule, or whether that situation continues to produce its effects after the entry into force of that rule.
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