25 Apr 2008 Agency Decision Category Rulemaking activities DownloadsRead More on general acceptable means of compliance for airworthiness of products, parts and appliances (AMC-20). Downloads [pdf] ED Decision 2008/004/R [pdf] Annex I - Preamble [pdf] Annex II - AMC 20-24 [pdf] Explanatory Note Read More Amending decision(s) ED Decision 2003/012/RM Related Certification Specification(s) AMC-20 Amendment 3