ENVIRONMENT
Convention on the Protection and Use of Transboundary Watercourses and International Lakes
- Reference
- XXVII-5
- Adopted
- Helsinki, 17 March 1992
- Entry into force
- 6 October 1996, in accordance with article 26(1).
- Registration
- 6 October 1996, No. 33207
- Signatories
- 26
- Parties
- 59
- Depositary record
- United Nations Treaty Collection
- 26 signed
- 59 ratified or acceded
- 60 participants listed
Who signed, and when
| Country | Signature | Ratification, acceptance, approval or accession |
|---|---|---|
| Albania | 18 Mar 1992 | 5 Jan 1994 |
| Austria | 18 Mar 1992 | 25 Jul 1996 |
| Azerbaijan | - | 3 Aug 2000 a |
| Bangladesh | - | 20 Jun 2025 a |
| Belarus | - | 29 May 2003 a |
| Belgium | 18 Mar 1992 | 8 Nov 2000 |
| Bosnia and Herzegovina | - | 3 Dec 2009 a |
| Botswana | - | 20 Jan 2026 a |
| Bulgaria | 18 Mar 1992 | 28 Oct 2003 |
| Cameroon | - | 1 Nov 2022 a |
| Chad | - | 22 Feb 2018 a |
| Croatia | - | 8 Jul 1996 a |
| Czech Republic | - | 12 Jun 2000 a |
| Côte d'Ivoire | - | 10 Jul 2024 a |
| Denmark | 18 Mar 1992 | 28 May 1997 AA |
| Denmark 2 | 18 Mar 1992 | 28 May 1997 AA |
| Estonia | 18 Mar 1992 | 16 Jun 1995 |
| European Union | 18 Mar 1992 | 14 Sep 1995 AA |
| Finland | 18 Mar 1992 | 21 Feb 1996 A |
| France | 18 Mar 1992 | 30 Jun 1998 AA |
| France 3 | 18 Mar 1992 | 30 Jun 1998 AA |
| Gambia | - | 17 Jul 2023 a |
| Germany | 18 Mar 1992 | 30 Jan 1995 |
| Ghana | - | 22 Jun 2020 a |
| Greece | 18 Mar 1992 | 6 Sep 1996 |
| Guinea-Bissau | - | 14 Jun 2021 a |
| Hungary | 18 Mar 1992 | 2 Sep 1994 AA |
| Iraq | - | 24 Mar 2023 a |
| Italy | 18 Mar 1992 | 23 May 1996 |
| Jordan | - | 6 Feb 2026 a |
| Kazakhstan | - | 11 Jan 2001 a |
| Latvia | 18 Mar 1992 | 10 Dec 1996 |
| Liechtenstein | - | 19 Nov 1997 a |
| Lithuania | 18 Mar 1992 | 28 Apr 2000 |
| Luxembourg | 20 May 1992 | 7 Jun 1994 |
| Montenegro | - | 23 Jun 2014 a |
| Namibia | - | 8 Jun 2023 a |
| Netherlands (Kingdom of the) | 18 Mar 1992 | 14 Mar 1995 A |
| Netherlands (Kingdom of the) 4 | 18 Mar 1992 | 14 Mar 1995 A |
| Nigeria | - | 22 Mar 2023 a |
| North Macedonia | - | 28 Jul 2015 a |
| Norway | 18 Sep 1992 | 1 Apr 1993 AA |
| Panama | - | 6 Jul 2023 a |
| Poland | 18 Mar 1992 | 15 Mar 2000 |
| Portugal | 9 Jun 1992 | 9 Dec 1994 |
| Portugal 5 | 9 Jun 1992 | 9 Dec 1994 |
| Republic of Moldova | - | 4 Jan 1994 a |
| Romania | 18 Mar 1992 | 31 May 1995 |
| Russian Federation | 18 Mar 1992 | 2 Nov 1993 A |
| Senegal | - | 31 Aug 2018 a |
| Serbia | - | 27 Aug 2010 a |
| Sierra Leone | - | 26 Sep 2025 a |
| Slovakia | - | 7 Jul 1999 a |
| Slovenia | - | 13 Apr 1999 a |
| Spain | 18 Mar 1992 | 16 Feb 2000 |
| Sweden | 18 Mar 1992 | 5 Aug 1993 |
| Switzerland | 18 Mar 1992 | 23 May 1995 |
| Togo | - | 28 Sep 2021 a |
| Turkmenistan | - | 29 Aug 2012 a |
| Ukraine | - | 8 Oct 1999 a |
| United Kingdom of Great Britain and Northern Ireland | 18 Mar 1992 | - |
| Uzbekistan | - | 4 Sep 2007 a |
| Zambia | - | 4 Sep 2024 a |
| Zimbabwe | - | 19 Jul 2024 a |
Participants that are UN member states link to their profile. The Holy See, the European Union, the Cook Islands and Niue appear in these tables and are not member states, so they are named without a link rather than attached to the nearest match. The third column carries the depositary’s own annotation. Accession, succession and acceptance are legally distinct from ratification and are shown as the record states them rather than flattened into one word.
Counts verified against the depositary’s own totals for this treaty before publication. The United Nations Treaty Collection is the authority; this page is a readable copy and may lag it.