In the Czech Republic, the issues concerning the environment since the 90s of the last century have been discussed. At that time, the political system as well as an attitude to the environmental questions was different. Since then, atmospheric protection in the Czech Republic has signifi cantly improved. Current status and positive progress of the environment in the context of a sustainable development is guaranteed by the EU legislation also in the Czech Republic. The paper discusses effi cient environmental tools used in the Czech Republic, their strength and weaknesses. These tools affect the interaction between manufacturing corporations and the major components of the environment, especially air. In this paper, the system of atmospheric protection in the Czech Republic and instruments which are effi cient and well applicable in the corporate environment are analyzed. The paper pays main attention to economic tools, especially the potential of a tax system. The Czech Republic tax legislation has recently undergone a considerable change in the fi eld of environmental protection, especially with regard to the income tax. In 2011, many tax exemptions and benefi ts that were related to the implementation of environmental systems in practice were cancelled. A case study is being realized to explore how the amendment of the legislation, especially the income tax act, affected the decision-making of economic subjects with regard to environmental aspects of their own business activities in the fi eld of alternative sources of energy.