This document defines the competence profiles and establishes procedures for assessing the competence of persons who carry out the installation@ repairing and maintaining of automotive LPG systems in workshops covered in EN 16652-1 [2]. The requirements of this document do not apply to ??Car manufacturer network repairers?? (see 3.8) when performing the activities of repairing@ servicing and maintenance of vehicles from manufacturers for which they are authorized and duly trained.