The Republic of Costa Rica signed the Mine Ban Treaty on 3 December 1997 and ratified it on 17 March 1999, becoming a State Party on 1 September 1999. Costa Rica has never used, produced, exported, or imported antipersonnel mines, including for training purposes. Legislation to enforce the antipersonnel mine prohibition domestically was enacted on 17 April 2002. It has not submitted its fifth Mine Ban Treaty Article 7 report, which was due on 30 April 2011.
Costa Rica did not attend any Mine Ban Treaty meetings in 2010 or the first half of 2011.
Costa Rica is party to the Convention on Conventional Weapons and its Amended Protocol II on landmines and Protocol V on explosive remnants of war.
Costa Rica’s northern border with Nicaragua was contaminated by mines laid by parties to the 1980s conflict in Nicaragua. In a ceremony on 10 December 2002, Costa Rica announced the completion of clearance in all known mined areas, well ahead of its 1 September 2009 Article 5 clearance deadline.