In order to understand how the UCPD “landed” into the national legal system, in the first part of the article a short overview of regulation available before the transposition of the Directive is provided. The second part of the article deals with analysis of national rules, transposing UCPD. In the third part of the article, relevant case law is analyzed. In conclusion the author notes that Lithuania is not an exception and like other member states faced difficulties when transposing UCPD into the national legal system. Although the growing number of national case law in this field is the best evidence that UCPD and the implementing act are striking developments, influencing the national consumer law, however, the way from core application uncertainties still needs to be found.