For ease of reference, states that have ratified or acceded are numbered, while signatory states awaiting ratification are unnumbered and indented. States are in the alphabetical order used in United Nations documents. Dates given are the earliest date of deposit of the relevant instrument with any of the depositaries.

1. Afghanistan signed 10 April 1972 and ratified 26 March 1975
2. Albania acceded 3 June 1992
3. Argentina signed 1 August 1972 and ratified 23 November 1979
4. Armenia acceded 7 June 1994
5. Australia signed 10 April 1972 and ratified 5 October 1977
6. Austria signed 10 April 1972 and ratified 10 August 1973
7. Bahamas acceded 26 November 1986
8. Bahrain acceded 28 October 1988
9. Bangladesh acceded 11 March 1985
10. Barbados signed 16 February 1973 and ratified 16 February 1973
11. Belarus signed 10 April 1972 and ratified 26 March 1975
12. Belgium signed 10 April 1972 and ratified 15 March 1979
13. Belize succeded 20 October 1986
14. Benin signed 10 April 1972 and ratified 25 April 1975
15. Bhutan acceded 8 June 1978
16. Bolivia signed 10 April 1972 and ratified 30 October 1975
17. Bosnia and Herzegovina succeded 15 August 1994
18. Botswana signed 10 April 1972 and ratified 5 February 1992
19. Brazil signed 10 April 1972 and ratified 27 February 1973
20. Brunei Darussalam acceded 31 January 1991
21. Bulgaria signed 10 April 1972 and ratified 2 August 1972
22. Burkina Faso acceded 17 April 1991
    • Burundi signed 10 April 1972
23. Cambodia signed 10 April 1972 and ratified 9 March 1983
24. Canada signed 10 April 1972 and ratified 18 September 1972
25. Cape Verde acceded 20 October 1977
    • Central African Republic signed 10 April 1972
26. Chile signed 10 April 1972 and ratified 22 April 1980
27. China [see note 1] acceded 15 November 1984
28. Colombia signed 10 April 1972 and ratified 19 December 1983
29. Congo acceded 23 October 1978
30. Costa Rica signed 10 April 1972 and ratified 17 December 1973
    • Côte d'Ivoire signed 23 May 1972
31. Croatia succeded 28 April 1993
32. Cuba signed 12 April 1972 and ratified 21 April 1976
33. Cyprus signed 10 April 1972 and ratified 6 November 1973
34. Czech Republic succeded 5 April 1993
35. Democratic People's Republic of Korea acceded 13 March 1987
36. Democratic Republic of the Congo signed 10 April 1972 and ratified 16 September 1975
37. Denmark signed 10 April 1972 and ratified 1 March 1973
38. Dominica acceded 8 November 1978 [see note 2]
39. Dominican Republic signed 10 April 1972 and ratified 23 February 1973
40. Ecuador signed 14 June 1972 and ratified 12 March 1975
    • Egypt signed 10 April 1972
41. El Salvador signed 10 April 1972 and ratified 31 December 1991
42. Equatorial Guinea acceded 16 January 1989
43. Estonia acceded 5 May 1993
44. Ethiopia signed 10 April 1972 and ratified 26 May 1975
45. Fiji signed 22 February 1973 and ratified 4 September 1973
46. Finland signed 10 April 1972 and ratified 4 February 1974
47. France acceded 27 September 1984
    • Gabon signed 10 April 1972
48. Gambia signed 2 June 1972 and ratified 21 November 1991
49. Georgia acceded 22 May 1996
50. Germany signed 10 April 1972 and ratified 7 April 1983
51. Ghana signed 10 April 1972 and ratified 6 June 1975
52. Greece signed 10 April 1972 and ratified 10 December 1975
53. Grenada acceded 22 October 1986
54. Guatemala signed 9 May 1972 and ratified 19 September 1973
55. Guinea acceded 29 July 1992
56. Guinea-Bissau acceded 20 August 1976
    • Guyana signed 3 January 1973
    • Haiti signed 10 April 1972
57. Honduras signed 10 April 1972 and ratified 14 March 1979
58. Hungary signed 10 April 1972 and ratified 27 December 1972
59. Iceland signed 10 April 1972 and ratified 15 February 1973
60. India signed 15 January 1973 and ratified 15 July 1974
61. Indonesia signed 20 June 1972 and ratified 19 February 1992
62. Iran (Islamic Republic of) signed 10 April 1972 and ratified 22 August 1973
63. Iraq signed 11 May 1972 and ratified 18 April 1991
64. Ireland signed 10 April 1972 and ratified 27 October 1972
65. Italy signed 10 April 1972 and ratified 30 May 1975
66. Jamaica acceded 13 August 1975
67. Japan signed 10 April 1972 and ratified 8 June 1982
68. Jordan signed 10 April 1972 and ratified 30 May 1975
69. Kenya acceded 7 January 1976
70. Kuwait signed 14 April 1972 and ratified 18 July 1972
71. Lao People's Democratic Republic signed 10 April 1972 and ratified 20 March 1973
72. Latvia acceded 6 February 1997
73. Lebanon signed 10 April 1972 and ratified 26 March 1975
74. Lesotho signed 10 April 1972 and ratified 6 September 1977
    • Liberia signed 10 April 1972
75. Libyan Arab Jamahiriya acceded 19 January 1982
76. Liechtenstein acceded 31 May 1991
77. Lithuania acceded 10 February 1998
78. Luxembourg signed 10 April 1972 and ratified 23 March 1976
    • Madagascar signed 13 October 1972
    • Malawi signed 10 April 1972
79. Malaysia signed 10 April 1972 and ratified 6 September 1991
80. Maldives acceded 1 July 1993
    • Mali signed 10 April 1972
81. Malta signed 11 September 1972 and ratified 7 April 1975
82. Mauritius signed 10 April 1972 and ratified 7 August 1972
83. Mexico signed 10 April 1972 and ratified 8 April 1974
84. Monaco acceded 30 April 1999
85. Mongolia signed 10 April 1972 and ratified 5 September 1972
    • Morocco signed 2 May 1972
    • Myanmar signed 10 April 1972
    • Nepal signed 10 April 1972
86. Netherlands signed 10 April 1972 and ratified 22 June 1981
87. New Zealand signed 10 April 1972 and ratified 13 December 1972
88. Nicaragua signed 10 April 1972 and ratified 7 August 1975
89. Niger signed 21 April 1972 and ratified 23 June 1972
90. Nigeria signed 6 December 1972 and ratified 3 July 1973
91. Norway signed 10 April 1972 and ratified 1 August 1973
92. Oman acceded 31 March 1992
93. Pakistan signed 10 April 1972 and ratified 25 September 1974
94. Panama signed 2 May 1972 and ratified 20 March 1974
95. Papua New Guinea acceded 27 October 1980
96. Paraguay acceded 9 June 1976
97. Peru signed 10 April 1972 and ratified 11 June 1985
98. Philippines signed 10 April 1972 and ratified 21 May 1973
99. Poland signed 10 April 1972 and ratified 25 January 1973
100. Portugal signed 29 January 1972 and ratified 13 May 1973
101. Qatar signed 14 November 1972 and ratified 17 April 1975
102. Republic of Korea signed 10 April 1972 and ratified 25 January 1987
103. Romania signed 10 April 1972 and ratified 25 July 1979
104. Russian Federation signed 10 April 1972 and ratified 26 March 1975
105. Rwanda signed 10 April 1972 and ratified 20 May 1975
106. Saint Kitts and Nevis acceded 2 April 1991
107. Saint Lucia acceded 26 November 1986
108. Saint Vincent and the Grenadines acceded 13 May 1999
109. San Marino signed 12 September 1972 and ratified 11 March 1975
110. Sao Tome and Principe acceded 24 August 1979
111. Saudi Arabia signed 12 April 1972 and ratified 24 May 1972
112. Senegal signed 10 April 1972 and ratified 26 March 1975
113. Seychelles acceded 11 October 1979
114. Sierra Leone signed 7 November 1972 and ratified 29 June 1976
115. Singapore signed 19 June 1972 and ratified 2 December 1975
116. Slovak Republic succeded 17 March 1993
117. Slovenia succeded 7 April 1992
118. Solomon Islands acceded 17 June 1981
     • Somalia signed 3 July 72
119. South Africa signed 10 April 1972 and ratified 3 November 1975
120. Spain signed 10 April 1972 and ratified 20 June 1979
121. Sri Lanka signed 10 April 1972 and ratified 18 November 1986
122. Suriname acceded 9 April 1992
123. Swaziland acceded 18 June 1991
124. Sweden signed 27 February 1975 and ratified 5 February 1976
125. Switzerland signed 10 April 1972 and ratified 4 May 1976
     • Syrian Arab Republic signed 14 April 1972
126. Thailand signed 17 January 1973 and ratified 28 May 1975
127. The former Yugoslav Republic of Macedonia acceded 26 December 1996
128. Togo signed 10 April 1972 and ratified 10 November 1976
129. Tonga succeded 28 September 1976
130. Tunisia signed 10 April 1972 and ratified 18 May 1973
131. Turkey signed 10 April 1972 and ratified 4 November 1974
132. Turkmenistan acceded 11 January 1996
133. Uganda acceded 12 May 1992
134. Ukraine signed 10 April 1972 and ratified 26 March 1975
     • United Arab Emirates signed 28 September 1972
135. United Kingdom signed 10 April 1972 and ratified 26 March 1975
     • United Republic of Tanzania signed 16 August 1972
136. United States of America signed 10 April 1972 and ratified 26 March 1975
137. Uruguay acceded 6 April 1981
138. Uzbekistan acceded 12 January 1996
139. Vanuatu acceded 12 October 1990
140. Venezuela signed 10 April 1972 and ratified 18 October 1978
141. Viet Nam acceded 20 June 1980
142. Yemen signed 10 April 1972 and ratified 1 June 1979
143. Yugoslavia, Federal Republic of signed 10 April 1972 and ratified 25 October 1973
144. Zimbabwe acceded 5 November 1990

Notes:
[1.] With regard to the BWC, the People's Republic of China stated on accession (15 November 1984): "The signature and ratification of the Convention by the Taiwan authorities in the name of China on 10 April 1972 and 9 February 1973 are illegal and null and void".
[2.] Ambiguous.

HSP	THE HARVARD SUSSEX PROGRAM ON CBW ARMAMENT AND ARMS LIMITATION

Date of last revision: 31 January 2001 (RG)