Convention sur l´eau
Party Signature Ratification État Additional information
18 Mar 1992 05 Jan 1994 Ratification
18 Mar 1992 25 Jul 1996 Ratification Déclarations
03 Aug 2000 Accession
20 Jun 2025 Accession
29 May 2003 Accession
18 Mar 1992 08 Nov 2000 Ratification
03 Dec 2009 Accession
18 Mar 1992 28 Oct 2003 Ratification
01 Nov 2022 Accession
22 Feb 2018 Accession
08 Jul 1996 Accession
12 Jun 2000 Accession
10 Jul 2024 Accession
18 Mar 1992 28 May 1997 Approval End notes
18 Mar 1992 16 Jun 1995 Ratification
18 Mar 1992 14 Sep 1995 Approval
18 Mar 1992 21 Feb 1996 Acceptance
18 Mar 1992 30 Jun 1998 Approval End notes
17 Jul 2023 Accession
18 Mar 1992 30 Jan 1995 Ratification Déclarations
22 Jun 2020 Accession
18 Mar 1992 06 Sep 1996 Ratification
14 Jun 2021 Accession
18 Mar 1992 02 Sep 1994 Approval
24 Mar 2023 Accession
18 Mar 1992 23 May 1996 Ratification
11 Jan 2001 Accession
18 Mar 1992 10 Dec 1996 Ratification
19 Nov 1997 Accession Déclarations
18 Mar 1992 28 Apr 2000 Ratification Déclarations
20 May 1992 07 Jun 1994 Ratification
23 Jun 2014 Accession
08 Jun 2023 Accession
18 Mar 1992 14 Mar 1995 Acceptance Déclarations
End notes
22 Mar 2023 Accession
28 Jul 2015 Accession
18 Sep 1992 01 Apr 1993 Approval
06 Jul 2023 Accession
18 Mar 1992 15 Mar 2000 Ratification
09 Jun 1992 09 Dec 1994 Ratification End notes
04 Jan 1994 Accession
18 Mar 1992 31 May 1995 Ratification
18 Mar 1992 02 Nov 1993 Acceptance
31 Aug 2018 Accession
27 Aug 2010 Accession Déclarations
07 Jul 1999 Accession
13 Apr 1999 Accession
18 Mar 1992 16 Feb 2000 Ratification Déclarations
18 Mar 1992 05 Aug 1993 Ratification
18 Mar 1992 23 May 1995 Ratification
28 Sep 2021 Accession
29 Aug 2012 Accession
08 Oct 1999 Accession
04 Sep 2007 Accession
04 Sep 2024 Accession
19 Jul 2024 Accession
26 Sep 2025 Accession
20 Jan 2026 Accession Déclarations
06 Feb 2026 Accession
26 Aug 2026 Accession Déclarations

Etat non partie

Party Signature État Additional information
18 Mar 1992 Signatory

Declarations

Autriche
Declaration:"The Republic of Austria declares in accordance with article 22 paragraph 2 of the Convention, that it accepts both of the means of dispute settlement mentioned in this paragraph as compulsory in relation to any Party accepting an obligation concerning one or both these means of dispute settlement."
Allemagne
Declaration made upon signature and confirmed upon ratification:"The Federal Republic of Germany, in order to protect information related to personal data according to its national law, reserves the right to supply personal data only under the condition that the part receiving such protected information shall respect the confidentiality of the information received and the conditions under which it is supplied, and shall only use that information for the purposes for which it was supplied".
Liechtenstein
Declaration:[Same declaration, identical in essence , mutatis mutandis, as the one made under Austria.]
Lituanie
Declaration:“The Republic of Lithuania declares that, for a dispute not resolved in accordance with paragraph 1 of Article 22 it accepts the means of dispute settlement provided in paragraph 2 (b) of Article 22 of the said Convention.”
Pays-Bas
Declaration made upon signature and confirmed upon acceptance:"The Kingdom of the Netherlands accepts for a dispute not resolved in accordance with paragraph 1 of article 22 of the Convention both the following means of dispute settlement as compulsory in relation to any Party accepting the same obligation:( a ) Submission of the dispute to the International Court of Justice;( b ) Arbitration in accordance with the procedure set out in annex IV."
Serbie
Declaration made upon accesion:“In accordance with Article 22 paragraph 2 of the Convention on the Protection and Use of Transboundary Watercourses and International Lakes, the Republic of Serbia declares that, for a dispute not resolved in accordance with paragraph 1 of the Article 22, it accepts both means of dispute settlement in the manner and under the conditions referred to in Article 22 paragraphs 2 and 3.”
Espagne
Reservation:In relation to article 3, paragraph 1 (c), the Spanish State takes it that the limits for waste-water discharges stated in permits shall guarantee, in any case, respect for the water-quality criteria of the receiving environment, based on the best available technologies and the technical features of the affected installation, its geographical site and local environmental conditions.
Botswana
Declaration made upon accession:“… for purposes of Article 22(2) of the Convention, the Republic of Botswana declares that for any dispute not resolved in accordance with Article 22(1), it accepts as compulsory means of dispute settlement in relation to a Party accepting the same obligation, the submission of the dispute to the International Court of Justice; and Arbitration in accordance with the procedure set out in Annex IV to the Convention.”
Malawi
Declaration:“1. The Republic of Malawi understands and declares that nothing in the Convention, and in particular no obligation to cooperate, notify, consult, share data, or jointly manage transboundary watercourses, shall be construed as affecting, modifying, prejudicing, or creating any right in derogation of the territorial sovereignty or sovereign rights of Malawi over its territory, including the waters, bed, and subsoil of Lake Malawi insofar as they fall within Malawian territory as determined by applicable rules of international boundary law.2. The Republic of Malawi further declares that its accession to, and cooperation under, the Convention shall not in any manner be construed as an admission, acknowledgement, or recognition of the territorial or boundary claims of any other State with respect to Lake Malawi or any other shared water body, and shall not prejudice or affect the conduct or outcome of any bilateral or multilateral process for the resolution of boundary questions concerning such water bodies.3. The Republic of Malawi declares that the establishment of any joint body, commission, or mechanism pursuant to the Convention in relation to Lake Malawi or any watercourse adjacent to a disputed boundary shall be without prejudice to Malawi’s territorial and boundary positions, and the terms of reference of any such body shall not be construed as resolving or foreclosing any question of territorial sovereignty or boundary delimitation.4. This Declaration is made pursuant to Article 3 of the Convention, which affirms that the Convention does not affect existing treaties or agreements. and is consistent with the general principle of treaty interpretation affirmed in Article 31(3)(c) of the Vienna Convention on the Law of Treaties (1969), which requires that account be taken of all relevant rules of international law applicable in the relations between the Parties, including the rules governing territorial sovereignty and boundary delimitation.”

End Notes

Danemark

With reservation of application to the Faroe Islands and Greenland.
France

On 14 August 1998, the Government of France made a declaration with respect to the above Convention. The said declaration was communicated to all Contracting States by a depositary notification. Within a period of 90 days from the date of the depositary notification (i.e. 5 October 1998), none of the Contracting States to the Convention notified the Secretary-General of an objection. Consequently, the declaration is deemed to have been accepted for deposit on 3 January 1999.
Pays-Bas

For the Kingdom in Europe.
Portugal

On 28 June 1999, the Government of Portugal informed the Secretary-General the the Convention would also apply to Macau. See note 1 under "Portugal" in the "Historical Information" section in the front matter of this volume.
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