18.1. Commission Implementing Regulation (EU) 2020/357 of 4 March 2020 amending Regulation (EU) 2018/395 as regards balloon pilot licences - European Air Law View the chapter 18.1. Commission Implementing Regulation (EU) 2020/357 of 4 March 2020 amending Regulation (EU) 2018/395 as regards balloon pilot licences by - European Air Law 18.1. Commission Implementing Regulation (EU) 2020/357 of 4 March 2020 amending Regulation (EU) 2018/395 as regards balloon pilot licences