As noted in paragraph 174 of A/CN.9/510, there was general agreement that the principle of freedom of contract should apply to determining when the payment of freight was earned as well as when the payment of freight became due.
如A/CN.9/510第174段所述，与会者普遍认为，在确定何时挣得运费以及何时应付运费时，应当适用订约自由的原则。