 It added an article 5(4) to the law that defined that a foreign work was eligible to copyright in Russia if its copyright had not expired in the source country and it had not fallen into the public domain in Russia through the expiry of its copyright term.Previously, foreign works published before May 27, 1973, when the USSR had joined the Universal Copyright Convention (UCC), had not been copyrighted at all in the Soviet Union or in Russia, even after Russia had joined the Berne Convention in 1995.When Russia had signed the Berne Convention, it had made a reservation regarding article 18 of the Berne Convention by stating that it would not consider the Berne Convention applicable to any works in the public domain in Russia.