This European Standard defines the competence profiles@ and establishes procedures for assessing the competence of persons who carry out the installation@ repairing and maintaining of LPG systems in workshops covered in EN 16652-1. The requirements of this standard do not apply to ??Car manufacturer network repairers?? (see 3.9) when performing the activities of repairing@ servicing and maintenance of vehicles from manufacturers for which they are authorized and duly trained