The Master thesis consistently analyses peculiarities of Community trade mark regulation in comparison with national trade mark legal systems in member states (primarily Lithuania, Germany and United Kingdom) and Protocol relating to the Madrid Agreement Concerning the International Registration of Marks. The author takes notice of although requirements for the marks which have to be registered as Community trade marks are similar to those in member states, however there are several differences in registration proceedings. In the third part of the work, consequences upon infringement of Community trade mark proprietor rights are analyzed. Enforcement of rights problem is one of the least disclosed issue in the regulation No.40/94 and one of the most complicated part of Community trade mark system. In accordance with laws operating in the Community and in member states, case law and jurisprudence, the author looks for peculiarities estimating jurisdiction and applicable law, as well peculiarities applying remedies of rights enforcement, and proposes various approaches concerning solutions to problematic issues.