Restriction on Modifying Class-Labeled UAS
Verified from official sourcesAMC1 UAS.OPEN.020(5)(c)AMC1 UAS.OPEN.020(5)(c)Version 2Effective -Verified 24 August 2026
In plain language
Do not modify your C0, C1, C2, or C3 drone in any way that violates its product standards unless the manufacturer's manual explicitly allows and describes that modification.
Requirement as structured
EASA accepts, as a means of complying with UAS.OPEN.020(5)(c), that UAS operators do not make any modification to a UAS in class C0, C1, C2, C3 or C4 that breaches compliance with the product requirements, unless the modification is foreseen by the manufacturer and documented in the manufacturer's instructions.
Original regulatory text
UAS operators should, therefore, not make any modifications to a UAS in class C0, C1, C2, C3 or C4 that breach compliance with the product requirements, unless the modification is foreseen by the manufacturer and documented in the manufacturer’s instructions.
Applies when
- country
- European Union / EASA
- operation
- EU UAS operation
- class marking
- C0, C1, C2, C3
- regulatory category
- Open