Section 40. If an actual carrier performs the whole or part of carriage which, according to the contract referre

40. If an actual carrier performs the whole or part of carriage which, according to the contract referred to in rule 39, is governed by these rules, both the contracting carrier and the actual carrier shall, except as otherwise provided in this Chapter, be subject to the provisions of these rules, the former for the whole of the carriage contemplated in the contract, the latter solely for the carriage which it performs. 41.(1) The acts and omissions of the actual carrier and of its servants and agents acting within the scope of their employment shall, in relation to the carriage performed by the actual carrier, be deemed to be also those of the contracting carrier. (2) The acts and omissions of the contracting carrier and of its servants and agents acting within the scope of their employment shall, in relation to the carriage performed by the actual carrier, be deemed to be also those of the actual carrier. Nevertheless, no such act or omission shall subject the actual carrier to liability exceeding the amounts referred to in rules 21, 22, 23 and 24. Any special agreement under which the contracting carrier assumes obligations not imposed by the provisions of these rules or any waiver of rights or defences conferred by the provisions of these rules or any special declaration of interest in delivery at destination contemplated in rule 22 shall not affect the actual carrier unless agreed to by it.