Polish law on combating unfair competition is influenced by EU law. This influence is so significant that it requires a new and comprehensive look at Polish solutions. The aim of the conducted research was to analyse the problems encountered in Polish law in relation to the implementation of Directive 2005/29/EC on unfair commercial practices. This directive plays a key role for all considerations, as it introduced a new approach to the way of transposing the provisions on combating unfair competition. Unlike previous acts, the Directive adopted a maximum standard of harmonization...