According to International Civil Aviation Organization (ICAO) Assembly Resolution A40-19, the Carbon Offsetting and Reduction Scheme for International Aviation mechanism (CORSIA) is to be the only global market-based measure (MBM) applied to CO2 emissions from international aviation. This solution has been dictated by the intention to avoid a patchwork of duplicative State or regional MBMs and to ensure that international aviation CO2 emissions should be accounted for only once. The present contribution assesses the margin of autonomy left for Emissions Trading System of the EU (EU ETS) mechanism in the light of this clause, considering its legal status and divergent interpretations. Moreover, the recent 2020 roadmap for revision of the EU ETS Directive concerning aviation, published by the European Commission, is briefly discussed.

根据国际民用航空组织 ( ICAO ) 大会 A40-19 号决议，国际航空碳抵消和减少计划机制 ( CORSIA ) 将成为唯一适用于国际航空二氧化碳排放的全球市场措施 ( MBM )。该解决方案旨在避免重复的国家或区域MBMs 并确保国际航空二氧化碳排放量应只计算一次。考虑到其法律地位和不同的解释，目前的贡献评估了欧盟排放交易体系 (EU ETS) 机制根据本条款保留的自主权。此外，还简要讨论了最近由欧盟委员会发布的关于航空的 EU ETS 指令的 2020 年修订路线图。