F1Any clause contained in the contract and all special agreements entered into before the damage occurred by which the parties purport to infringe the rules laid down by this Convention, whether by deciding the law to be applied, or by altering the rules as to jurisdiction shall be null and void. Nevertheless for the carriage of cargo arbitration clauses are allowed subject to this Convention, if the arbitration is to take place within one of the jurisdictions referred to in the first paragraph of Article 28.