No. ATEX refers to the two European Directives that provide mandatory legislative requirements for equipment and protective systems intended for use in potentially explosive atmospheres (DIRECTIVE 2014/34/EU), and the safety and health protection of workers potentially at risk from explosive atmospheres (DIRECTIVE 1999/92/EC). CompEx is an internationally recognised competency certification scheme designed to assess the knowledge and practical skills of personnel working with electrical and instrumentation equipment in potentially explosive atmospheres.