# The Air Navigation Order 2016, Paragraph 4


The aircraft, including any modifications, must be of a design which previously has been approved by the CAA, or by an organisation approved for that purpose by the CAA, as being compliant with a standard accepted by the CAA as appropriate for the issue of a national certificate of airworthiness.

---
Source: https://www.legislation.gov.uk/uksi/2016/765/schedule/3/part/1/chapter/1/paragraph/4 (the official version)
Page: https://openlegislation.uk/air-navigation-order-2016/schedule-3/part-1/chapter-1/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.