79. 对及时提交材料和提前预订机票规定的遵守情况见表 17。关于提前预订机票，2020 年的业绩受到 COVID-19 疫情的影响。然而，余留机制通过发布各种通告信息和直接与旅行者接触改善遵守情况，继续满足提高差旅合规率的需求。
79. Information on compliance with regard to the timely submission of documentation and advance booking for air travel is reflected in table 17. With regard to the advance booking for air travel, the performance in 2020 was affected by the COVID-19 pandemic. Nevertheless, the Mechanism will continue to address the need to improve its travel compliance rate by issuing various broadcast messages and directly engaging with travellers to improve adherence.