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New and modified treaties. An overview of newly added and modified treaties can now be found in the Home tab. For each treaty you can see what information has been modified: general treaty information, parties and/or parts of the Kingdom. For more information click ‘Help’ at the bottom of this page and go to ‘FAQ’.

Treaty

Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer

Date modified Regarding
17-11-2022 Party

Party

Belarus added

  • Ratification: 03-11-2022 (R)
  • Entry into force: 01-02-2023
  • Reservations / Declarations: No
  • Objections: No

15-11-2022 Party

Party

Philippines added

  • Ratification: 03-11-2022 (R)
  • Entry into force: 01-02-2023
  • Reservations / Declarations: No
  • Objections: No

02-11-2022 Party

Party

Brazil added

  • Ratification: 19-10-2022 (R)
  • Entry into force: 17-01-2023
  • Reservations / Declarations: No
  • Objections: No

United States of America added

  • Ratification: 31-10-2022 (R)
  • Entry into force: 29-01-2023
  • Reservations / Declarations: No
  • Objections: No

Zimbabwe added

  • Ratification: 18-10-2022 (R)
  • Entry into force: 16-01-2023
  • Reservations / Declarations: No
  • Objections: No

25-10-2022 Party

Party

Türkiye modified

  • Objections: Yes
  • added reservation
    10-11-2021
    Turkey’s ratification of [t]he Kigali Amendment (2016) … to the Montreal Protocol agreed by the Twenty-Eighth Meeting of the Parties should in no way be construed as implying any obligation on the part of Turkey to enter into any dealing with the countries that Turkey has no diplomatic relations within the framework of UN Environment Programme activities.

    added objection to reservation

    Objections Cyprus, 05-10-2022

    The Republic of Cyprus has examined the Declaration deposited by the Republic of Turkey on 10 November 2021, upon ratification of the Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer of 15 October 2016, and notes that such a declaration is not in conformity with the 1985 Vienna Convention for the Protection of the Ozone Layer and the 1987 Montreal Protocol. By means of the submitted Declaration, Turkey purports to release itself of the obligation to cooperate with other States Parties within the framework of the Vienna Convention and the Montreal Protocol. ln the view of the Republic of Cyprus, this Declaration attempts to exclude or modify the legal effects of the said treaties, including in effect certain provisions thereof, in their application to Turkey, concerning cooperation between States Parties, which is one of the essential elements of and is explicitly envisaged in the aforementioned instruments. ln light of the above, it is the position of the Republic of Cyprus that the Declaration submitted by the Republic of Turkey is an interpretative declaration tantamount to a reservation, contrary to both Article 18 of the 1985 Vienna Convention for the Protection of the Ozone Layer, and Article 18 of the 1987 Montreal Protocol, which explicitly prohibit reservations, and, in any event, is incompatible with the object and purpose of these treaties. The Republic of Cyprus, therefore, rejects the aforesaid Declaration made by the Republic of Turkey and considers it to be null and void. The Objection of the Republic of Cyprus shall not preclude the entry into force of the Amendment to the Protocol, in its entirety, between the Republic of Cyprus and the Republic of Turkey.


20-10-2022 New treaty

General information

  • Entry into force: 01-01-2019

Kingdom part

Netherlands (in Europe)

  • Entry into force: 01-01-2019

Party

Albania

  • Ratification: 18-01-2019 (R)
  • Entry into force: 18-04-2019

Andorra

  • Ratification: 23-01-2019 (R)
  • Entry into force: 23-04-2019

Angola

  • Ratification: 16-11-2020 (R)
  • Entry into force: 14-02-2021

Argentina

  • Ratification: 22-11-2019 (R)
  • Entry into force: 20-02-2020

Armenia

  • Ratification: 02-05-2019 (R)
  • Entry into force: 31-07-2019

Australia

  • Ratification: 27-10-2017 (R)
  • Entry into force: 01-01-2019

Austria

  • Ratification: 27-09-2018 (R)
  • Entry into force: 01-01-2019

Bangladesh

  • Ratification: 08-06-2020 (R)
  • Entry into force: 06-09-2020

Barbados

  • Ratification: 19-04-2018 (R)
  • Entry into force: 01-01-2019

Belgium

  • Ratification: 04-06-2018 (R)
  • Entry into force: 01-01-2019

Benin

  • Ratification: 19-03-2018 (R)
  • Entry into force: 01-01-2019

Bhutan

  • Ratification: 27-09-2019 (R)
  • Entry into force: 26-12-2019

Bolivia

  • Ratification: 09-10-2020 (R)
  • Entry into force: 07-01-2021

Bosnia and Herzegovina

  • Ratification: 26-05-2021 (R)
  • Entry into force: 24-08-2021

Botswana

  • Ratification: 19-09-2020 (R)
  • Entry into force: 18-12-2020

Bulgaria

  • Ratification: 01-05-2018 (R)
  • Entry into force: 01-01-2019

Burkina Faso

  • Ratification: 26-07-2018 (R)
  • Entry into force: 01-01-2019

Burundi

  • Ratification: 26-03-2021 (R)
  • Entry into force: 24-06-2021

Cabo Verde

  • Ratification: 28-10-2020 (R)
  • Entry into force: 26-01-2021

Cambodia

  • Ratification: 08-04-2021 (R)
  • Entry into force: 07-07-2021

Cameroon

  • Ratification: 24-08-2021 (R)
  • Entry into force: 22-11-2021

Canada

  • Ratification: 03-11-2017 (R)
  • Entry into force: 01-01-2019

Chad

  • Ratification: 26-03-2019 (R)
  • Entry into force: 24-06-2019

Chile

  • Ratification: 19-09-2017 (R)
  • Entry into force: 01-01-2019

Colombia

  • Ratification: 25-02-2021 (R)
  • Entry into force: 26-05-2021

Comoros

  • Ratification: 16-11-2017 (R)
  • Entry into force: 01-01-2019

Cook Islands

  • Ratification: 22-08-2019 (R)
  • Entry into force: 20-11-2019

Costa Rica

  • Ratification: 23-05-2018 (R)
  • Entry into force: 01-01-2019

Côte d'Ivoire

  • Ratification: 29-11-2017 (R)
  • Entry into force: 01-01-2019

Croatia

  • Ratification: 06-12-2018 (R)
  • Entry into force: 01-01-2019

Cyprus

  • Ratification: 22-07-2019 (R)
  • Entry into force: 20-10-2019

Czech Republic

  • Ratification: 27-09-2018 (R)
  • Entry into force: 01-01-2019

Democratic People's Republic of Korea

  • Ratification: 21-09-2017 (R)
  • Entry into force: 01-01-2019

Democratic Republic of the Congo

  • Ratification: 16-06-2022 (R)
  • Entry into force: 14-09-2022

Dominican Republic

  • Ratification: 14-04-2021 (R)
  • Entry into force: 13-07-2021

Ecuador

  • Ratification: 22-01-2018 (R)
  • Entry into force: 01-01-2019

El Salvador

  • Ratification: 13-09-2021 (R)
  • Entry into force: 12-12-2021

Estonia

  • Ratification: 27-09-2018 (R)
  • Entry into force: 01-01-2019

Eswatini

  • Ratification: 24-11-2020 (R)
  • Entry into force: 22-02-2021

Ethiopia

  • Ratification: 05-07-2019 (R)
  • Entry into force: 03-10-2019

Fiji

  • Ratification: 16-06-2020 (R)
  • Entry into force: 14-09-2020

Finland

  • Ratification: 14-11-2017 (R)
  • Entry into force: 01-01-2019

France

  • Ratification: 29-03-2018 (R)
  • Entry into force: 01-01-2019

Gabon

  • Ratification: 28-02-2018 (R)
  • Entry into force: 01-01-2019

Gambia, The

  • Ratification: 05-05-2021 (R)
  • Entry into force: 03-08-2021

Germany

  • Ratification: 14-11-2017 (R)
  • Entry into force: 01-01-2019

Ghana

  • Ratification: 02-08-2019 (R)
  • Entry into force: 31-10-2019

Greece

  • Ratification: 05-10-2018 (R)
  • Entry into force: 01-01-2019

Grenada

  • Ratification: 29-05-2018 (R)
  • Entry into force: 01-01-2019

Guinea

  • Ratification: 05-12-2019 (R)
  • Entry into force: 04-03-2020

Guinea-Bissau

  • Ratification: 22-10-2018 (R)
  • Entry into force: 01-01-2019

Honduras

  • Ratification: 28-01-2019 (R)
  • Entry into force: 28-04-2019

Hungary

  • Ratification: 14-09-2018 (R)
  • Entry into force: 01-01-2019

Iceland

  • Ratification: 25-01-2021 (R)
  • Entry into force: 25-04-2021

India

  • Ratification: 27-09-2021 (R)
  • Entry into force: 26-12-2021

Ireland

  • Ratification: 12-03-2018 (R)
  • Entry into force: 01-01-2019

Italy

  • Ratification: 25-05-2022 (R)
  • Entry into force: 23-08-2022

Japan

  • Ratification: 18-12-2018 (R)
  • Entry into force: 01-01-2019

Jordan

  • Ratification: 16-10-2019 (R)
  • Entry into force: 14-01-2020

Kiribati

  • Ratification: 26-10-2018 (R)
  • Entry into force: 01-01-2019

Kyrgyzstan

  • Ratification: 08-09-2020 (R)
  • Entry into force: 07-12-2020

Laos

  • Ratification: 16-11-2017 (R)
  • Entry into force: 01-01-2019

Latvia

  • Ratification: 17-08-2018 (R)
  • Entry into force: 01-01-2019

Lebanon

  • Ratification: 05-02-2020 (R)
  • Entry into force: 05-05-2020

Lesotho

  • Ratification: 07-10-2019 (R)
  • Entry into force: 05-01-2020

Liberia

  • Ratification: 12-07-2020 (R)
  • Entry into force: 10-10-2020

Liechtenstein

  • Ratification: 16-09-2020 (R)
  • Entry into force: 15-12-2020

Lithuania

  • Ratification: 24-07-2018 (R)
  • Entry into force: 01-01-2019

Luxembourg

  • Ratification: 16-11-2017 (R)
  • Entry into force: 01-01-2019

Malawi

  • Ratification: 21-11-2017 (R)
  • Entry into force: 01-01-2019

Malaysia

  • Ratification: 21-10-2020 (R)
  • Entry into force: 19-01-2021

Maldives

  • Ratification: 13-11-2017 (R)
  • Entry into force: 01-01-2019

Mauritius

  • Ratification: 01-10-2019 (R)
  • Entry into force: 30-12-2019

Mexico

  • Ratification: 25-09-2018 (R)
  • Entry into force: 01-01-2019

Mongolia

  • Ratification: 27-07-2022 (R)
  • Entry into force: 25-10-2022

Montenegro

  • Ratification: 23-04-2019 (R)
  • Entry into force: 22-07-2019

Morocco

  • Ratification: 22-04-2022 (R)
  • Entry into force: 21-07-2022

Mozambique

  • Ratification: 16-01-2020 (R)
  • Entry into force: 15-04-2020

Namibia

  • Ratification: 16-05-2019 (R)
  • Entry into force: 14-08-2019

Netherlands, the Kingdom of the

  • Ratification: 08-02-2018 (R)
  • Entry into force: 01-01-2019

Nicaragua

  • Ratification: 30-09-2020 (R)
  • Entry into force: 29-12-2020

Niger

  • Ratification: 29-08-2018 (R)
  • Entry into force: 01-01-2019

Nigeria

  • Ratification: 20-12-2018 (R)
  • Entry into force: 01-01-2019

Niue

  • Ratification: 24-04-2018 (R)
  • Entry into force: 01-01-2019

North Macedonia

  • Ratification: 12-03-2020 (R)
  • Entry into force: 10-06-2020

Norway

  • Ratification: 06-09-2017 (R)
  • Entry into force: 01-01-2019

Palau

  • Ratification: 29-08-2017 (R)
  • Entry into force: 01-01-2019

Panama

  • Ratification: 28-09-2018 (R)
  • Entry into force: 01-01-2019

Paraguay

  • Ratification: 01-11-2018 (R)
  • Entry into force: 01-01-2019

Peru

  • Ratification: 07-08-2019 (R)
  • Entry into force: 05-11-2019

Poland

  • Ratification: 07-01-2019 (R)
  • Entry into force: 07-04-2019

Portugal

  • Ratification: 17-07-2018 (R)
  • Entry into force: 01-01-2019

Romania

  • Ratification: 01-07-2020 (R)
  • Entry into force: 29-09-2020

Russian Federation

  • Ratification: 03-10-2020 (R)
  • Entry into force: 01-01-2021

Rwanda

  • Ratification: 23-05-2017 (R)
  • Entry into force: 01-01-2019

Saint Lucia

  • Ratification: 02-11-2021 (R)
  • Entry into force: 31-01-2022

Samoa

  • Ratification: 23-03-2018 (R)
  • Entry into force: 01-01-2019

San Marino

  • Ratification: 20-10-2020 (R)
  • Entry into force: 18-01-2021

São Tomé e Principe

  • Ratification: 04-10-2019 (R)
  • Entry into force: 02-01-2020

Senegal

  • Ratification: 31-08-2018 (R)
  • Entry into force: 01-01-2019

Serbia

  • Ratification: 08-10-2021 (R)
  • Entry into force: 06-01-2022

Seychelles

  • Ratification: 20-08-2019 (R)
  • Entry into force: 18-11-2019

Sierra Leone

  • Ratification: 15-06-2020 (R)
  • Entry into force: 13-09-2020

Singapore

  • Ratification: 01-06-2022 (R)
  • Entry into force: 30-08-2022

Slovakia

  • Ratification: 16-11-2017 (R)
  • Entry into force: 01-01-2019

Slovenia

  • Ratification: 07-12-2018 (R)
  • Entry into force: 01-01-2019

Solomon Islands

  • Ratification: 23-05-2022 (R)
  • Entry into force: 21-08-2022

Somalia

  • Ratification: 27-11-2019 (R)
  • Entry into force: 25-02-2020

South Africa

  • Ratification: 01-08-2019 (R)
  • Entry into force: 30-10-2019

Spain

  • Provisional application: 20-01-2022

Sri Lanka

  • Ratification: 28-09-2018 (R)
  • Entry into force: 01-01-2019

Sweden

  • Ratification: 17-11-2017 (R)
  • Entry into force: 01-01-2019

Switzerland

  • Ratification: 07-11-2018 (R)
  • Entry into force: 01-01-2019

Syria

  • Ratification: 05-04-2021 (R)
  • Entry into force: 04-07-2021

Tajikistan

  • Ratification: 29-06-2022 (R)
  • Entry into force: 27-09-2022

Tanzania

  • Ratification: 25-03-2022 (R)
  • Entry into force: 23-06-2022

Togo

  • Ratification: 08-03-2018 (R)
  • Entry into force: 01-01-2019

Tonga

  • Ratification: 17-09-2018 (R)
  • Entry into force: 01-01-2019

Trinidad and Tobago

  • Ratification: 17-11-2017 (R)
  • Entry into force: 01-01-2019

Tunisia

  • Ratification: 27-08-2021 (R)
  • Entry into force: 25-11-2021

Turkmenistan

  • Ratification: 31-08-2020 (R)
  • Entry into force: 29-11-2020

Tuvalu

  • Ratification: 21-09-2017 (R)
  • Entry into force: 01-01-2019

Uganda

  • Ratification: 21-06-2018 (R)
  • Entry into force: 01-01-2019

United Kingdom

  • Ratification: 14-11-2017 (R)
  • Entry into force: 01-01-2019
  • Gibraltar
    Entry into force: 18-10-2019Man, Isle of
    Entry into force: 25-02-2021

Uruguay

  • Ratification: 12-09-2018 (R)
  • Entry into force: 01-01-2019

Vanuatu

  • Ratification: 20-04-2018 (R)
  • Entry into force: 01-01-2019

Vietnam

  • Ratification: 27-09-2019 (R)
  • Entry into force: 26-12-2019

Zambia

  • Ratification: 15-03-2021 (R)
  • Entry into force: 13-06-2021

China

  • Ratification: 17-06-2021 (R)
  • Entry into force: 15-09-2021
  • Reservations / Declarations: Yes
  • Objections: No
  • reservation
    17-06-2021
    I. Article 5 of the Montreal Protocol on Substances that Deplete the Ozone Layer shall not apply to the Hong Kong Special Administrative Region and the Macao Special Administrative Region of the People’s Republic of China. II. In accordance with the Basic Law of the Hong Kong Special Administrative Region of the People’s Republic of China and the Basic Law of the Macao Special Administrative Region of the People’s Republic of China, the Government of the People’s Republic of China decides that the abovementioned Amendment shall apply to the Macao Special Administrative Region of the People’s Republic of China, and unless otherwise notified by the Government of the People’s Republic of China, shall not apply to the Hong Kong Special Administrative Region of the People’s Republic of China.


Denmark

  • Ratification: 06-12-2018 (R)
  • Entry into force: 01-01-2019
  • Reservations / Declarations: Yes
  • Objections: No
  • reservation
    06-12-2018
    Territorial exclusion in respect of Greenland


EU (European Union)

  • Ratification: 27-09-2018 (R)
  • Entry into force: 01-01-2019
  • Reservations / Declarations: Yes
  • Objections: No
  • reservation
    27-09-2018
    Declaration by the European Union in conformity with Article 13 (3) of the Vienna Convention for the protection of the ozone layer concerning the extent of its competence with respect to the matters covered by the Convention and by the Montreal Protocol on substances that deplete the ozone layer. The following States are at present Members of the European Union: the Kingdom of Belgium, the Republic of Bulgaria, the Czech Republic, the Kingdom of Denmark, the Federal Republic of Germany, the Republic of Estonia, Ireland, the Hellenic Republic, the Kingdom of Spain, the French Republic, the Republic of Croatia, the Italian Republic, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Grand Duchy of Luxembourg, Hungary, the Republic of Malta, the Kingdom of the Netherlands, the Republic of Austria, the Republic of Poland, the Portuguese Republic, Romania, the Republic of Slovenia, the Slovak Republic, the Republic of Finland, the Kingdom of Sweden, the United Kingdom of Great Britain and Northern Ireland. In accordance with the Treaty on the Functioning of the European Union, and in particular Article 192 (1) thereof, the Union has competence for entering into international agreements, and for implementing the obligations resulting therefrom, which contribute to the pursuit of the following objectives: - preserving, protecting and improving the quality of the environment; - protecting human health; - prudent and rational utilisation of natural resources; - promoting measures at international level to deal with regional or worldwide environmental problems, and in particular combating climate change. The Union has exercised its competence in the area covered by the Vienna Convention and the Montreal Protocol by adopting legal instruments, in particular Regulation (EC) No 1005/2009 of the European Parliament and of the Council of 16 September 2009 on substances that deplete the ozone layer (recast) 1, replacing earlier legislation for the protection of the ozone layer, and of Regulation (EU) No 517/2014 of the European Parliament and of the Council of 16 April 2014 on fluorinated greenhouse gases and repealing Regulation (EC) No 842/2006 2. The Union is competent for the performance of those obligations from the Vienna Convention and the Montreal Protocol regarding which the provisions of Union legal instruments, in particular those mentioned above, establish common rules and if and insofar as such common rules are affected or altered in scope by provisions of the Vienna Convention or the Montreal Protocol or an act adopted in implementation thereof; otherwise the Union's competence continues to be shared between the Union and its Member States. The exercise of competences by the European Union pursuant to the Treaties is, by its nature, subject to continuous development. The Union therefore reserves the right to adjust this Declaration. In the field of research, as referred to by the Convention, the Union has competence to carry out activities, in particular to define and implement programmes; however, the exercise of that competence does not result in Member States being prevented from exercising theirs. ______________________ 1 OJ L 286, 31.10.2009, p. 1. 2 OJ L 150, 20.5.2014, p. 195.


Holy See

  • Ratification: 17-06-2020 (R)
  • Entry into force: 15-09-2020
  • Reservations / Declarations: Yes
  • Objections: No
  • reservation
    17-06-2020
    In ratifying the Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer, the Holy See desires to encourage the entire international community to be resolute in promoting authentic cooperation between politics, science, economics, and civil society. Such cooperation, as has been shown in the case of the international ozone regime, «can achieve important outcomes, which make it simultaneously possible to safeguard creation, to promote integral human development and to care for the common good, in a spirit of responsible solidarity and with profound positive repercussions for present and future generations» (Holy See's Declaration Attached to the Instrument of Accession to the Vienna Convention, the Montreal Protocol and its four Amendments, 9 April 2008). The international ozone regime has demonstrated that «we have the freedom needed to limit and direct technology; we can put it at the service of another type of progress, one which is healthier, more human, more social, more integral» (Pope Francis, Encyclical Letter Laudato Si’, 18 May 2015, n. 112). In conformity with its own nature and with the particular character of Vatican City State, the Holy See, by means of the solemn act of ratification, intends to give its own support to the commitment of States to the correct and effective implementation of the ozone regime and to care for our common home. To this end, it wishes to acknowledge the fact that «the continued acceleration of changes affecting humanity and our planet, coupled today with a more intense pace of life and work, should constantly urge us to ask whether the goals of this progress are truly directed to the common good and to a sustainable and integral human development, or whether they cause harm to our world and to the quality of life of much of humanity, now and in the future» (Message of His Holiness Pope Francis to the XXXI Meeting of the Parties to the Montreal Protocol, 7 November 2019).


New Zealand

  • Ratification: 03-10-2019 (R)
  • Entry into force: 01-01-2020
  • Reservations / Declarations: Yes
  • Objections: No
  • reservation
    03-10-2019
    [...] consistent with the constitutional status of Tokelau and taking into account the commitment of the Government of New Zealand to the development of self-government for Tokelau through an act of self-determination under the Charter of the United Nations, [the ratification by New Zealand of this Amendment] shall not extend to Tokelau unless and until a Declaration to this effect is lodged by the Government of New Zealand with the depositary on the basis of appropriate consultation with that Territory […]


Türkiye

  • Ratification: 10-11-2021 (R)
  • Entry into force: 08-02-2022
  • Reservations / Declarations: Yes
  • Objections: No
  • reservation
    10-11-2021
    Turkey’s ratification of [t]he Kigali Amendment (2016) … to the Montreal Protocol agreed by the Twenty-Eighth Meeting of the Parties should in no way be construed as implying any obligation on the part of Turkey to enter into any dealing with the countries that Turkey has no diplomatic relations within the framework of UN Environment Programme activities.