The Russian Constitution was adopted by national referendum on December 12, 1993. Article 29 "On the Rights and Freedoms of the Person and Citizen" establishes the universal right to freedom of thought and opinion, freedom of expression of beliefs and convictions, and freedom to seek, receive, transmit, produce and disseminate information. This right can be limited only by law and only "in the interests of protecting the Constitution, morality, health, rights and lawful interests of other persons, or for the defence of the country and national security". According to the Constitution, only the law can limit freedom of speech and establish limits for its expression. The fundamental piece of media-specific federal legislation is the Law "on Mass Media", which was passed on December 27, 1991 and took effect on February 13, 1992.