Chronological list of accessions and ratifications to the BTWC

As of 1 January 2007 there were 155 ratifications and accessions to the Biological and Toxin Weapons Convention.

The most recent accession was Moldova, which acceded on 28 January 2005.

The following list is in chronological order:

• Saudi Arabia signed 12-04-72 and ratified 24-05-72
• Niger signed 21-04-72 and ratified 23-06-72
• Kuwait signed 14-04-72 and ratified 18-07-72
• Bulgaria signed 10-04-72 and ratified 02-08-72
• Mauritius signed 10-04-72 and ratified 07-08-72
• Mongolia signed 10-04-72 and ratified 05-09-72
• Ireland signed 10-04-72 and ratified 27-10-72
• Canada signed 10-04-72 and ratified 18-09-72
• Germanysigned 10-04-72 and ratified 28-11-72
• New Zealand signed 10-04-72 and ratified 13-12-72
• Hungary signed 10-04-72 and ratified 27-12-72
• Poland signed 10-04-72 and ratified 25-01-73
• Taiwan (not officially recognized as an independent state by the United Nations) signed 10-04-72 and ratified 09-02-73
• Iceland signed 10-04-72 and ratified 15-02-73
• Barbados signed 16-02-73 and ratified 16-02-73
• Dominican Republic signed 10-04-72 and ratified 23-02-73
• Brazil signed 10-04-72 and ratified 27-02-73
• Denmark signed 10-04-72 and ratified 01-03-73
• Lao People's Democratic Republic signed 10-04-72 and ratified 20-03-73
• Tunisia signed 10-04-72 and ratified 18-05-73
• Philippines signed 10-04-72 and ratified 21-05-73
• Nigeria signed 03-07-72 and ratified 03-07-73
• Norway signed 10-04-72 and ratified 01-08-73
• Austria signed 10-04-72 and ratified 10-08-73
• Iran (Islamic Republic of) signed 10-04-72 and ratified 22-08-73
• Fiji signed 22-02-73 and ratified 04-09-73
• Guatemala signed 09-05-72 and ratified 19-09-73
• Serbia and Montenegro signed 10-04-72 and ratified 25-10-73
• Cyprus signed 10-04-72 and ratified 06-11-73
• Costa Rica signed 10-04-72 and ratified 17-12-73
• Finland signed 10-04-72 and ratified 04-02-74
• Panama signed 02-05-72 and ratified 20-03-74
• Mexico signed 10-04-72 and ratified 08-04-74
• Indiasigned 15-01-73 and ratified 15-07-74
• Pakistan signed 10-04-72 and ratified 25-09-74
• Turkey signed 10-04-72 and ratified 25-10-74
• San Marino signed 12-09-72 and ratified 11-03-75
• Ecuador signed 14-06-72 and ratified 21-03-75
• Afghanistan signed 10-04-72 and ratified 26-03-75
• Belarus signed 10-04-72 and ratified 26-03-75
• Lebanon signed 10-04-72 and ratified 26-03-75
• Russian Federation signed 10-04-72 and ratified 26-03-75
• Senegal signed 10-04-72 and ratified 26-03-75
• Ukraine signed 10-04-72 and ratified 26-03-75
• United Kingdom of Great Britain and Northern Ireland signed 10-04-72 and ratified 26-03-75
• Malta signed 11-09-72 and ratified 07-04-75
• United States of America signed 10-04-72 and ratified 26-03-75
• Qatar signed 14-11-72 and ratified 17-04-75
• Benin signed 10-04-72 and ratified 25-04-75
• Portugal signed 29-06-72 and ratified 15-05-75
• Rwanda signed 10-04-72 and ratified 20-05-75
• Ethiopia signed 10-04-72 and ratified 26-05-75
• Thailand signed 17-01-73 and ratified 28-05-75
• Italy signed 10-04-72 and ratified 30-05-75
• Jordan signed 10-04-72 and ratified 30-05-75
• Ghana signed 10-04-72 and ratified 06-06-75
• Nicaragua signed 10-04-72 and ratified 07-08-75
• Jamaica acceded 13-08-75
• Democratic Republic of the Congo signed 10-04-72 and ratified 16-09-75
• Bolivia signed 10-04-72 and ratified 30-10-75
• South Africa signed 10-04-72 and ratified 03-11-75
• Singapore signed 19-06-72 and ratified 02-12-75
• Greece signed 10-04-72 and ratified 10-12-75
• Kenya acceded 07-01-76
• Sweden signed 27-02-75 and ratified 05-02-76
• Luxembourg signed 10-04-72 and ratified 23-03-76
• Cuba signed 10-04-72 and ratified 21-04-76
• Switzerlandsigned 10-04-72 and ratified 04-05-76
• Paraguay acceded 09-06-76
• Sierra Leone signed 07-11-72 and ratified 29-06-76
• Guinea-Bissau acceded 20-08-76
• Tonga acceded 28-09-76
• Togo signed 10-04-72 and ratified 10-11-76
• Lesotho signed 10-04-72 and ratified 06-09-77
• Australia signed 10-04-72 and ratified 05-10-77
• Cape Verde acceded 20-10-77
• Bhutan acceded 08-06-78
• Venezuela signed 10-04-72 and ratified 18-10-78
• Congo acceded 23-10-78
• Honduras signed 10-04-72 and ratified 14-03-79
• Belgium signed 10-04-72 and ratified 15-03-79
• Yemen signed 26-04-72 and ratified 01-06-79
• Spain signed 10-04-72 and ratified 20-06-79
• Romania signed 10-04-72 and ratified 25-07-79
• Sao Tome and Principe acceded 24-08-79
• Seychelles acceded 11-10-79
• Argentina signed 01-08-72 and ratified 27-11-79
• Chile signed 10-04-72 and ratified 22-04-80
• Viet Nam acceded 20-06-80
• Papua New Guinea acceded 27-10-80
• Uruguay acceded 06-04-81
• Solomon Islands acceded 17-06-81
• Netherlands signed 10-04-72 and ratified 22-06-81
• Libyan Arab Jamahiriya acceded 19-01-82
• Japan signed 10-04-72 and ratified 08-06-82
• Cambodia signed 10-04-72 and ratified 09-03-83
• Colombia signed 10-04-72 and ratified 19-12-83
• France acceded 27-09-84
• Chinaacceded 15-11-84
• Peru signed 10-04-72 and ratified 05-06-85
• Belize acceded 20-10-86
• Grenada acceded 22-10-86
• Sri Lanka signed 10-04-72 and ratified 18-11-86
• Bahamas acceded 26-11-86
• Saint Lucia acceded 26-11-86
• Democratic People's Republic of Korea acceded 13-03-87
• Republic of Koreasigned 10-04-72 and ratified 25-06-87
• Equatorial Guinea acceded 16-01-89
• Vanuatu acceded 12-10-90
• Zimbabwe acceded 05-11-90
• Brunei Darussalam acceded 31-01-91
• Saint Kitts and Nevis acceded 02-04-91
• Burkina Faso acceded 17-04-91
• Liechtenstein acceded 30-05-91
• Iraq signed 11-05-72 and ratified 19-06-91
• Gambia signed 02-06-72 and ratified 21-11-91
• El Salvador signed 10-04-72 and ratified 31-12-91
• Malaysiasigned 10-04-72 and ratified 06-09-91
• Swaziland acceded 18-06-91
• Botswana signed 10-04-72 and ratified 05-02-92
• Albania acceded 03-06-92
• Indonesia signed 20-06-72 and ratified 19-02-92
• Oman acceded 31-03-92
• Slovenia acceded 07-04-92
• Uganda acceded 12-05-92
• Suriname acceded 06-01-93
• Czech Republic acceded 05-04-93
• Croatia acceded 28-04-93
• Slovakiaacceded 17-05-93
• Estonia acceded 21-06-93
• Maldives acceded 02-08-93
• Armenia acceded 07-06-94
• Bosnia and Herzegovina acceded 15-08-94
• Turkmenistan acceded 11-01-96
• Uzbekistan acceded 11-01-96
• Georgia acceded 22-05-96
• The former Yugoslav Republic of Macedonia acceded 24-12-96
• Latvia acceded 06-02-97
• Lithuania acceded 10-02-98
• Monaco acceded 30-04-99
• Saint Vincent and the Grenadines acceded 13-05-99
• Algeria acceded 22-07-01
• Holy See signed 04-01-02 and ratified 04-01-02
• Morocco signed 02-05-72 and ratified 21-03-02
• Mali signed 10-04-72 and ratified 25-11-02
• Antigua and Barbuda acceded 29-01-03
• Palau acceded 20-02-03
• Timor Leste acceded 05-05-03
• Sudan acceded 17-10-03
• Azerbaijan acceded 26-02-04
• Kyrgyzstan acceded 12-10-04
• Republic of Moldova acceded 28-01-05

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