Consequences of Invalidating Class Conformity

Verified from official sources
AMC1 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