05 Apr 2022 Certification Specification (CS) Official Publication Certification Specifications group CS-ACNS Airborne Communications, Navigation and Surveillance Regulation group Airspace Usage Requirements (AUR) Read More Read More CS file [pdf] CS-ACNS Issue 4 Related ED Decision ED Decision 2022/008/R Explanatory Note [pdf] Explanatory Note to ED Decision 2022/008/R Change Information [pdf] Change Information — CS-ACNS Issue 4
