List of parties to the Ottawa Treaty

This is a list of states that have signed and ratified or acceded to the Ottawa Treaty (also known as the Mine Ban Treaty). The treaty, which outlaws anti-personnel mines, was opened for signature on December 3, 1997. Canada, Ireland, and Mauritius became the first states to ratify the treaty that same day. The treaty came into force and closed for signature on March 1, 1999 with the ratification by 40 states. Since then, states that did not sign the treaty can now only accede to it. Currently, 162 states have ratified or acceded to the treaty, the most recent being the Marshall Islands that had signed the treaty but not ratified it until March 13, 2025.https://www.minesactioncanada.org/marshall_islands_mbt Although at the same time period, five nations announced that they are leaving treaty and three nations completed the withdrawal in December 2025.

States parties The following states have either signed and ratified or acceded to the treaty. State Signed Deposited Method Accession Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Accession Ratification Ratification Ratification Accession Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Accession Ratification Ratification Ratification Accession Accession Ratification Ratification Ratification Ratification Ratification Ratification Accession Ratification Ratification Ratification Ratification Ratification Ratification Accession Accession Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Accession Ratification Ratification Ratification Acceptance Ratification Ratification Accession Accession Ratification Accession Ratification Ratification Accession Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Succession Ratification Ratification Accession Acceptance Ratification Ratification Ratification Accession Ratification Ratification Accession Accession Accession Ratification Accession Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Accession Ratification Ratification Approval Ratification Ratification Accession Ratification Succession Ratification Accession Ratification Ratification Ratification Ratification Ratification Accession Ratification Ratification Accession RatificationJun 25, 2025Accession Ratification Ratification March 26, 2004 Accession Ratification Accession Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification Ratification

Former parties The following states formally began or completed the withdrawal from the treaty:

State Signed Deposited Withdrawal notification Withdrawal completed

Non-signatory states

Notes

See also

List of parties to the Biological Weapons Convention List of parties to the Chemical Weapons Convention List of parties to the Convention on Certain Conventional Weapons List of parties to the Comprehensive Nuclear-Test-Ban Treaty List of parties to the Partial Nuclear Test Ban Treaty List of parties to the Treaty on the Non-Proliferation of Nuclear Weapons List of parties to the Treaty on the Prohibition of Nuclear Weapons

References