Abstract
The impact of occupational safety and health (OSH) training is a neglected topic in safety research. In Norway, such training is mandatory for all business leaders. Hence, the Norwegian working life forms a particularly interesting case for studying the impact of OSH training. On the basis of data from labour inspections performed by the Norwegian Labour Inspection Authority (NLIA), this article examines the impact of business leaders' mandatory OSH training on the establishment of robust OSH systems. Three separate studies have been conducted. In study 1, cross-sectional data from inspections of 29,224 companies are analysed. In study 2 and 3, longitudinal data from inspections of 1119 and 189 companies, respectively, are analysed. The analyses reveal that mandatory OSH training of business leaders is positively associated with compliance with legal requirements related to the minimum content of OSH systems. This means that mandatory OSH training is important for the establishment of robust occupational safety and health management systems.