Introduction. This paper discusses the most topical issues of the Biocidal Products Directive (BPD) implementation, in particular, the impact on the social and health safety on various population groups, environmental safety, trade, manufacturing and their prospectives. The Aim of the Study – to evaluate the development of the biocides market and its participants in Lithuania. The Tasks – to evaluate the impact of the approximation of the laws of Lithuania and the European Union, concerning the placing of biocides on the market and its participants. Methods. Based on the "Methodology for impact of the regulatory laws assessment", the study identifies changes in the biocides market and the activity of its participants. A sample survey of manufacturers of biocides and of the users (personal health care institutions and preventive disinfection and disinfestation enterprises) was conducted. The analysis and evaluation of the available biocides database was also undertaken and SPSS statistics software was used to measure the statistical significance of the results. The market was assessed by the application of the criteria laid down in the BPD, in particular, the number of authorized biocides, distribution of product types, distribution of biocides according to categories of users, distribution of use of identified and notified active substances of biocides. Results. The study demonstrated that the Lithuanian biocides market has changed following the implementation of the BPD:... [to full text]