12 Mar 2015 Agency Decision Category Rulemaking activities DownloadsRead More amending Certification Specifications and Acceptable Means of Compliance for Engines (CS-E) Downloads [pdf] ED Decision 2015/009/R [pdf] CS-E Amendment 4 The file was replaced on 26/11/2020. The corrections are highlighted with yellow [pdf] CS-E Amendment 4 - Explanatory Note [pdf] CS-E Amendment 4 - Change Information Read More Related NPA(s) NPA 2012-23 NPA 2014-03 NPA 2011-04 Related Certification Specification(s) CS-E Amendment 4