1. International Maritime Organisation, Fourth Greenhouse Gas Study, 2020.
2. Decision No 406/2009/EC of the European Parliament and of the Council of 23 April 2009 on the effort of Member States to reduce their greenhouse gas emissions to meet the Community’s greenhouse gas emission reduction commitments up to 2020, OJ L 140, 5.6.2009.
3. European Commission, Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions: Integrating maritime transport emissions in the EU's greenhouse gas reduction policies, 28.6.2013, COM/2013/0479 final.
4. Regulation (EU) 2015/757 of the European Parliament and of the Council of 29 April 2015 on the monitoring, reporting and verification of carbon dioxide emissions from maritime transport, and amending Directive 2009/16/EC, OJ L 123, 19.5.2015.
5. Legal instrument choice in the European Union;Hurka;Jour. Com. Mark. Stud.,2021