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Definition of the certification basis for changes to type certificates workshop

13-14 November 2018

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From 13-14 November, the EU-China Aviation Partnership Project (APP) successfully held a workshop in Beijing on the definition of the certification basis for changes to type certificates (TC).

The workshop was attended by fifty-five participants coming among others from EASA, CAAC Headquarters and regional Administrations, CAAC Airworthiness Certification Centers in Beijing, Shanghai, Shenyang, Xi’an, and Jiangxi, Chinese aircraft manufacturers and research institutes, and European aircraft manufacturers.

Over the course of the two days, both EASA’s and CAAC’s respective regulatory frameworks and guidance material addressing the designation of the applicable specifications and environmental protection requirements for changes to type certificates and restricted type certificates were presented. The exchange facilitated mutual understanding of the applicable criteria. The authority presentations were complemented by contributions from European and Chinese industry representatives with their experience of applying the applicable rules.


Main topics for discussion were EASA principles and criteria for classification of changes to type certificates, the definition by EASA and CAAC of the certification basis for changed products, requirements of CCAR21.101 and the establishment of the certification basis for design change during post-type certificate (TC) certification. The activity stimulated lively discussions among participants and significantly contributed to creating a better idea on how to enhance the level of safety while maintaining efficiency under the current existing processes.


The exchange has been beneficial for the participating stakeholders, and paves the way for further cooperation between EASA and CAAC in their aim of enhancing an industry-wide understanding of the criteria that systematically and consistently promote the introduction of certification standards.

You can find the supporting resources for this activity here.  A password is required, to request access please contact Wang Lili at

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