14 Jul 2021 Certification Specification (CS) Official Publication Amendment 04 Certification Specifications group CS-34 Aircraft Engine Emissions and Fuel Venting Regulation group Initial Airworthiness Read More Read More CS file [pdf] CS-34 Amendment 4 The file was replaced on 04/05/2022. The correction is highlighted with yellow. Related ED Decision ED Decision 2021/011/R Explanatory Note [pdf] Explanatory Note to ED Decision 2021/011/R Change Information [pdf] Change Information — CS-34 Amendment 4
