22 Dec 2006 Official Publication Amendment 1 Certification Specifications group AMC-20 General Acceptable Means of Compliance for Airworthiness of Products, Parts and Appliances Read MoreRelated Content Read More CS file [pdf] AMC-20 / Amendment 1 Related ED Decision ED Decision 2006/012/R Explanatory Note [pdf] Explanatory note Related Content [pdf] Easy Access Rules for Acceptable Means of Compliance for Airworthiness of Products, Parts and Appliances (AMC-20) (Amendment 1)