5.1. Commission Implementing Regulation (EU) 2015/2426 of 18 December 2015 amending Regulation (EU) 2015/1998 as regards third countries recognised as applying security standards equivalent to the common basic standards on civil aviation security - European Air Law View the chapter 5.1. Commission Implementing Regulation (EU) 2015/2426 of 18 December 2015 amending Regulation (EU) 2015/1998 as regards third countries recognised as applying security standards equivalent to the common basic standards on civil aviation security by - European Air Law 5.1. Commission Implementing Regulation (EU) 2015/2426 of 18 December 2015 amending Regulation (EU) 2015/1998 as regards third countries recognised as applying security standards equivalent to the common basic standards on civil aviation security