The author provides an analysis of the legal regulation of cloud computing effective in the Czech Republic and its relationship to the certification of cloud computing services in the European Union. The article answers the question of how both legal regulations will co-applicate when EUCS will be finished. Although the Czech cloud computing regulation could be considered as the cloud computing certification scheme, it is argued why both legal regulations will be effective at the same time and how it will be possible to achieve one certification through the other.