Skip to content

A gradual release of Avioverse begins in October 2026. Request early access →

EASA Easy Access Rules

European Technical Standard Orders (CS-ETSO)

CS-ETSO287 paragraphsEAR revision 1 Oct 2026

Regulation scope extract · SUBPART A

1.1 The requirements for the issue of European Technical Standard Order (ETSO) authorisations are found in Part 21, Section A, Subpart O. 1.2 The marking requirements for the issue of European Technical Standard Order (ETSO) authorisations are found in Part 21, Section A, Subpart Q.

IR · SUBPART A — CS-ETSO · CS-ETSO Easy Access Rules · EAR revision 1 Oct 2026

Consolidated from the EASA Easy Access Rules (revision 1 Oct 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.