OBS_VALUE: Costa Rica is a party to the Berne Convention and the Paris Act since June 10, 1978. Costa Rica ratified the WIPO Copyright Treaty and the WIPO Performances and Phonograms Treaty on November 29, 2000.As a member of the WTO,  Costa Rica is also a party to the TRIPS Agreement.  Costa Rica notified certain derogations under the WPPT, see:  http://www.wipo.int/treaties/en/notifications/wppt/treaty_wppt_76.html