1. A favourable decision shall be revoked or amended where, in cases other than those referred to in Article 18, one or more of the conditions laid down for its issue were not or are no longer fulfilled.
2. Except where otherwise specified in the customs legislation, a favourable decision addressed to several persons may be revoked only in respect of a person who fails to fulfil an obligation imposed under that decision.
3. The person to whom the decision was addressed shall be notified of its revocation or amendment.
4. Article 16(3) shall apply to the revocation or amendment of the decision. However, in exceptional cases where the legitimate interests of the person to whom the decision was addressed so require, the customs authorities may defer the date on which revocation or amendment takes effect.
5. The Commission may, in accordance with the management procedure referred to in Article 184(3), adopt measures for the implementation of this Article, in particular in respect of decisions addressed to several persons.