21.3. Commission Implementing Regulation (EU) 2021/1166 of 15 July 2021 amending Implementing Regulation (EU) 2019/947 as regards postponing the date of application for standard scenarios for operations executed in or beyond the visual line of sight - European Air Law View the chapter 21.3. Commission Implementing Regulation (EU) 2021/1166 of 15 July 2021 amending Implementing Regulation (EU) 2019/947 as regards postponing the date of application for standard scenarios for operations executed in or beyond the visual line of sight by - European Air Law 21.3. Commission Implementing Regulation (EU) 2021/1166 of 15 July 2021 amending Implementing Regulation (EU) 2019/947 as regards postponing the date of application for standard scenarios for operations executed in or beyond the visual line of sight