The copyright regulation that is valid and applicable in the territory of the Czech Republic has sources from three legal systems—international, EU, and national. The fundamental international sources of the Czech copyright include six international treaties regarding copyright, including the Berne Convention, and sixteen concerning intellectual property. The principal EU sources include especially EU Directives, including Directive 2001/29 on the harmonization of certain aspects of copyright and related rights in the information society (“InfoSoc Directive”). The principal national sources, i.e. the internal Czech sources, of the Czech copyright legal regime are the Czech copyright lex specialis, Act No. 121/2000 Coll., on Copyright and Rights Related to Copyright (“Copyright Act”), along with the Czech Constitution, Bill of Fundamental Rights and Freedoms, Civil Code, Antitrust Act, Administrative Order, and Criminal Code.