The book describes the individual phases that must be carried out in accordance with the EU Eco-Audit Regulation to establish an environmental management system. It assists responsible individuals in small and medium-sized enterprises in organizing operational environmental protection independently. This makes the processes within the company more transparent and lays the groundwork for an efficient environmental management system. New opportunities arise for identifying potential savings and for the ongoing improvement of the environmental situation. The individual chapters of the book correspond to the respective steps in building an environmental management system. Each chapter is supplemented by a concrete example from a model company.