GMGuidance material
GM1 Article 2(16)Definitions
DEFINITION OF ‘PRIVATELY BUILT UAS’ A UAS is considered privately built when it is manufactured or assembled by the operator for their own use and not placed on the market (i.e. there is no offer or agreement (written or verbal) for the transfer of its ownership or any other property right). In the context of this definition, the terms ‘assembled’ or ‘manufactured’ by the operator concerns one of the following actions:
(a)the complete manufacturing of the UAS, or at least the most of it;
(b)the assembly of the UAS from parts or sub-assemblies sold separately;
(c)the modification of a class C4 UAS (aeromodel). A change of one or a few components of a UAS bearing a class identification label (apart from a C4 UAS) does not qualify it as a privately built UAS, unless the change is described in the manufacturer’s instructions. For more information, please refer to AMC1 UAS.OPEN.020(5)(c) and (d), UAS.OPEN.030(3) and UAS.OPEN.040(4)(c), (d) and (e). A UAS assembled from the elements provided in a ‘ready-to-assemble kit’ is also not considered ‘privately built’.
GM · GM1 Article 2(16) — Regulations (EU) 2019/947 and 2019/945 · ED Decision 2022/002/R · UAS Easy Access Rules · EAR revision 29 Jun 2026