Different organizations are committed to reducing deaths and serious injuries in road traffic. Their activities must be guided by research to produce measurable results contributed in reducing casualties and making roads safer. This paper provides detailed information about the second stage of the study for an evaluation of social legislation infringements for international haulage truck drivers involved in severe road transport accidents. The data were obtained from original sources of information: from digital tachograph printouts, analog tachograph data record sheets and attestations of activities. The aim of the second research stage was to find out to which extent the drivers involved in severe road traffic accidents (hereinafter RTA) have committed infringements more often and in larger quantities compared to the data obtained from the vehicle and driver regular roadside checks, i.e. compared with the drivers not involved in RTA. The second task for the paper is to analyze infringements by type and by level of drivers' riskiness to be involved in the RTA. The obtained findings and conclusions of in-depth case studies have been compiled, processed, analyzed and systematized by severity, quantity and type of simultaneously committed offences, installed tachograph type and other parameters. The statistical data have been grouped, systematized and analyzed according to the aim of the research. Based on various sources of information, an analysis of infringements for international haulage truck drivers was made between the obtained average amount of infringements per severe RTA case and per regular roadside check. The results of the research state that the drivers involved in severe RTA have committed considerably more infringements before the actual RTA has happened. The most part of infringements directly or indirectly refers to the lack of rest time and increased driving or overall working hours. These infringements for international haulage truck drivers are referred to be as major factors contributing to drivers' fatigue and high accidents risk.