This document describes the capabilities activities and responsibilities of the operators on the field of the Additive Manufacturing technologies dealing with metallic parts production, specifically for the employment of powder bed fusion electron beam with metals (PBF-EB/M). This document defines criteria for the theoretical and practical assessment of personnel operating PBFEB/M machines. The activities and procedures foreseen to be performed by the PBF-EB operator are also part of the standard. This document is intended to provide guidance for qualification of machine operators in general industrial applications.