14 Oct 2009 Certification Specification (CS) Official Publication Amendment 4 Certification Specifications group CS-ETSO European Technical Standard Orders Verwandte InhalteRead More Related Content [pdf] Easy Access Rules for European Technical Standard Orders (CS-ETSO) (Amendment 4) Read More CS file [pdf] CS-ETSO Amendment 4 Related ED Decision ED Decision 2009/014/R Explanatory Note [pdf] CS-ETSO/Amendment 4 - Explanatory note Change Information [pdf] CS-ETSO/Amendment 4 - Change Information