Article 18U.K.Invalidity of contractual provisions
Any contractual provision concluded before the occurrence of the incident which has caused the death of or personal injury to a passenger or the loss of or damage to the passenger's luggage, purporting to relieve any person liable under this Convention of liability towards the passenger or to prescribe a lower limit of liability than that fixed in this Convention except as provided in Article 8, paragraph 4, and any such provision purporting to shift the burden of proof which rests on the carrier or performing carrier, or having the effect of restricting the options specified in Article 17, paragraphs 1 or 2, shall be null and void, but the nullity of that provision shall not render void the contract of carriage which shall remain subject to the provisions of this Convention.