DDP stands for Declaration of Design and Performance; it is the central summary document containing the definition and all relevant references of the article. Its informational content could be compared to the one of a Type Certificate Data Sheet for products. In the DDP the applicant is required to state that the article is designed, tested and manufactured in compliance with the applicable sections of Part 21 and CS-ETSO. A template is provided in AMC 21A.608 (Annex I to ED Decision 2012/020/R of 30 October 2012). Form 35 is no longer used.