This website is dedicated to micro-enterprises. It has the objective of providing access to information on safety and health in the working environment to the smallest and most numerous companies in Poland. Since it should compensate for the lack of materials for self-education on the above topic for the individual types of commercial activities, it has been prepared in the form of sets of informative and popular materials for each of the selected sectors. The materials that have been put together in this service are therefore organised by sector for various sectionsof the national economy. The information contained in it allows employers to independently assess the state of occupational safety in their enterprises. It contains a discussion of the basic duties of employers in the area of occupational safety and health. The OSH check lists contain a summary of potential hazards that could appear in the companies of a given sector, together with proposals of methods for eliminating or reducing them. The materials also contain the necessary references to the OSH related legal regulations and technical standards being in force in Poland.