Motivation is identified as one of the most important factors directly or indirectly affecting safety behaviour and the success of safety interventions in general (1-6). It is included in well known models of accident prevention (3,7-9), and can also serve as a proactive outcome measure in safety interventions, as data on accidents and incidents are reactive measures often related with high uncertainty (10,11). Occupational safety motivation can be defined as “the individual factors which awaken, channelize and maintain behaviour to attain a curtain goal” (1,2) - in this case occupational safety behaviour. The definition is inspired by the original Latin verb ‘movere’, which means to move physically or emotionally, an internal state, or a condition (12). Furthermore, the definition emphasizes behaviour change and maintaining behaviour, which are important aspects of occupational safety interventions.