Consequences of Invalidating Class Conformity
Verified from official sourcesAMC1 UAS.OPEN.020(5)(c)AMC1 UAS.OPEN.020(5)(c)Version 1Effective -Verified 24 August 2026
In plain language
If you use unapproved payloads or perform maintenance contrary to the manual, your drone loses its class rating. You must remove the class label and can then only fly it under 'specific' category rules.
Requirement as structured
EASA accepts that if non-compliant payload is attached or maintenance is improper, the class conformity is invalidated, the class label must be removed, and the UAS may only be operated in the 'specific' category.
Original regulatory text
If the payload does not comply with the characteristics of the allowed payloads or if maintenance is not performed according to the manufacturer’s instructions, it is then considered a modification that invalidates the class conformity. The class identification label must be removed from the UAS identification label and the modified UAS may only be operated in the ‘specific’ category in accordance with Subpart B of Annex to the UAS Regulation.
Applies when
- country
- European Union / EASA
- operation
- EU UAS operation
- class marking
- C0, C1, C2, C3
- regulatory category
- Open