Artikel 24

1. After notice of the decision has been served in accordance with Article 23, the only remedy available to the person sentenced shall be an opposition. Such opposition shall be examined, as the person sentenced chooses, either by the competent court in the requesting State or by that in the requested State. If the person sentenced expresses no choice, the opposition shall be examined by the competent court in the requested .State.
2. In the cases specified in the preceding paragraph, the opposition shall be admissible if it is lodged with the competent authority of the requested State within a period of 30 days from the date on which the notice was served. This period shall be reckoned in accordance with the relevant rules of the law of the requested State. The competent authority of that State shall promptly notify the authority which made the request for enforcement.