State[1][8] Signed Deposited Method Brazil Dec 26, 1933 Feb 23, 1937 Ratification Chile Dec 26, 1933 Mar 28, 1935 Ratification Colombia Dec 26, 1933 Jul 22, 1936 Ratification Costa Rica[lower-alpha 1] Sep 28, 1937 Accession Cuba Dec 26, 1933 Apr 28, 1936 Ratification Dominican Republic Dec 26, 1933 Dec 26, 1934 Ratification Ecuador Dec 26, 1933 Oct 3, 1936 Ratification El Salvador Dec 26, 1933 Jan 9, 1937 Ratification Guatemala Dec 26, 1933 Jun 12, 1935 Ratification Haiti Dec 26, 1933 Aug 13, 1941 Ratification Honduras Dec 26, 1933 Dec 1, 1937 Ratification Mexico Dec 26, 1933 Jan 27, 1936 Ratification Nicaragua Dec 26, 1933 Jan 8, 1937 Ratification Panama Dec 26, 1933 Nov 13, 1938 Ratification Paraguay Dec 26, 1933 Sep 7, 2018 Ratification United States Dec 26, 1933 Jul 13, 1934 Ratification Venezuela Dec 26, 1933 Feb 13, 1940 Ratification