The TRIPS agreement is an international agreement administered by the WTO that introduced intellectual property law into the multilateral trading system. It requires WTO members to provide minimum standards of protection for copyrights, trademarks, patents, and other intellectual property. TRIPS was negotiated at the end of the Uruguay Round between 1989-1990 and remains the most comprehensive agreement on IP. It has provisions for enforcement and allows for compulsory licensing of medicines under certain conditions. However, many nations have adopted even higher "TRIPS-plus" standards through bilateral agreements.