OBS_VALUE: Poland is a party to the Berne Convention since January 28, 1920 and the Paris Act since August 4, 1990 (articles 22-38) and October 22, 1994 (articles 1-21). Poland ratified the WIPO Copyright Treaty on July 21, 2003 and the WIPO Performances and Phonograms Treaty on December 23, 2003.As a member of the WTO, Poland is also a party to the TRIPS Agreement.  Poland has not notified any derogations under the WPPT, see: http://www.wipo.int/treaties/en/notifications/wppt/treaty_wppt_45.html