The thesis titled "Occupational safety and health" is focused on summarizing the current legal regulations that impose rights and obligations on employers and employees in the field of occupational health and safety. Introductory chapter emphasizes the understanding of the importance and function of safety aspects, historical context and role of the state. In the crucial second chapter the Czech legal regulations are analyzed in detail and the basic concepts of this issue (prevention of risk, work categorization, training...) are characterized. Following the legislation chapter three introduces options above standard approaches, by which the employer can be inspired or directly certified in task of the safety system solution. In the next ch...