Article 92

Until the provisions referred to in Article 91(1) have been laid down, no Member State may, unless the Council has unanimously adopted a measure granting a derogation, makeĀ  the various provisions governing the subject on 1 January 1958 or, for acceding States, the date of their accession less favourable in their direct or indirect effect on carriers of other Member States as compared with carriers who are nationals of that State.