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Montreal Protocol
Party Signature Ratification Status Additional information
17 Jun 2004 Accession
08 Oct 1999 Accession
20 Oct 1992 Accession
26 Jan 2009 Accession
17 May 2000 Accession
03 Dec 1992 Accession
29 Jun 1988 18 Sep 1990 Ratification
01 Oct 1999 Accession
08 Jun 1988 19 May 1989 Ratification
29 Aug 1988 03 May 1989 Ratification
12 Jun 1996 Accession
04 May 1993 Accession
27 Apr 1990 Accession
02 Aug 1990 Accession
16 Oct 1992 Accession
22 Jan 1988 31 Oct 1988 Acceptance
16 Sep 1987 30 Dec 1988 Ratification
09 Jan 1998 Accession
01 Jul 1993 Accession
23 Aug 2004 Accession
03 Oct 1994 Accession
01 Sep 1993 Succession End notes
04 Dec 1991 Accession
19 Mar 1990 Accession
27 May 1993 Accession
20 Nov 1990 Accession
14 Sep 1988 20 Jul 1989 Ratification
06 Jan 1997 Accession
31 Jul 2001 Accession
27 Jun 2001 Accession
30 Aug 1989 Accession
16 Sep 1987 30 Jun 1988 Ratification
29 Mar 1993 Accession
07 Jun 1994 Ratification
14 Jun 1988 26 Mar 1990 Ratification
14 Jun 1991 Accession End notes
06 Dec 1993 Accession
31 Oct 1994 Accession
15 Sep 1988 16 Nov 1994 Ratification
22 Dec 2003 Accession
30 Jul 1991 Accession
21 Sep 1992 Succession End notes
14 Jul 1992 Accession
28 May 1992 Accession
30 Sep 1993 Succession End notes
05 Apr 1993 Accession
24 Jan 1995 Accession
30 Nov 1994 Accession
16 Sep 1987 16 Dec 1988 Ratification End notes
30 Jul 1999 Accession
31 Mar 1993 Accession
18 May 1993 Accession
30 Apr 1990 Accession
16 Sep 1987 02 Aug 1988 Ratification
02 Oct 1992 Accession
06 Sep 2006 Accession
10 Mar 2005 Accession
17 Oct 1996 Accession
10 Nov 1992 Accession
11 Oct 1994 Accession
16 Sep 1987 16 Dec 1988 Approval Declarations
23 Oct 1989 Accession
16 Sep 1987 23 Dec 1988 Acceptance
16 Sep 1987 28 Dec 1988 Approval
09 Feb 1994 Accession
25 Jul 1990 Accession
21 Mar 1996 Accession
16 Sep 1987 16 Dec 1988 Ratification End notes
16 Sep 1987 14 Jul 1992 Ratification
29 Oct 1987 29 Dec 1988 Ratification
31 Mar 1993 Accession
07 Nov 1989 Accession
25 Jun 1992 Accession
12 Nov 2002 Accession
12 Aug 1993 Accession
29 Mar 2000 Accession
05 May 2008 Accession Declarations
14 Oct 1993 Accession
20 Apr 1989 Accession
29 Aug 1989 Accession
19 Jun 1992 Accession
21 Jul 1988 26 Jun 1992 Ratification
03 Oct 1990 Accession
25 Jun 2008 Accession
15 Sep 1988 16 Dec 1988 Ratification
14 Jan 1988 30 Jun 1992 Ratification
16 Sep 1987 16 Dec 1988 Ratification
31 Mar 1993 Accession
16 Sep 1987 30 Sep 1988 Acceptance
31 May 1989 Accession
26 Aug 1998 Accession
16 Sep 1987 09 Nov 1988 Ratification
07 Jan 1993 Accession
23 Nov 1992 Accession
31 May 2000 Accession
21 Aug 1998 Accession
28 Apr 1995 Accession
31 Mar 1993 Accession
25 Mar 1994 Accession
15 Jan 1996 Accession
11 Jul 1990 Accession
08 Feb 1989 Accession
18 Jan 1995 Accession
29 Jan 1988 17 Oct 1988 Ratification
07 Nov 1996 Accession
09 Jan 1991 Accession
29 Aug 1989 Accession
12 Jul 1988 16 May 1989 Ratification
28 Oct 1994 Accession
15 Sep 1988 29 Dec 1988 Ratification
11 Mar 1993 Accession
26 May 1994 Accession
18 Aug 1992 Accession End notes
16 Sep 1987 31 Mar 1988 Acceptance
06 Sep 1995 Accession
12 Mar 1993 Accession
07 Mar 1996 Accession
23 Oct 2006 Succession End notes
07 Jan 1988 28 Dec 1995 Ratification
09 Sep 1994 Accession
24 Nov 1993 Accession
20 Sep 1993 Accession
12 Nov 2001 Accession
06 Jul 1994 Accession
16 Sep 1987 16 Dec 1988 Acceptance End notes
16 Sep 1987 21 Jul 1988 Ratification End notes
05 Mar 1993 Accession
09 Oct 1992 Accession
31 Oct 1988 Accession
22 Dec 2003 Accession
10 Mar 1994 Succession End notes
16 Sep 1987 24 Jun 1988 Ratification
30 Jun 1999 Accession
18 Dec 1992 Accession
29 May 2001 Accession
16 Sep 1987 03 Mar 1989 Ratification
27 Oct 1992 Accession
03 Dec 1992 Accession
31 Mar 1993 Accession
14 Sep 1988 17 Jul 1991 Ratification
13 Jul 1990 Accession
16 Sep 1987 17 Oct 1988 Ratification End notes
22 Jan 1996 Accession
27 Feb 1992 Accession
24 Oct 1996 Accession
27 Jan 1993 Accession
29 Dec 1987 10 Nov 1988 Acceptance
11 Oct 2001 Accession
21 Dec 1992 Accession
23 Apr 2009 Accession
19 Nov 2001 Accession
01 Mar 1993 Accession
16 Sep 1987 06 May 1993 Ratification
12 Mar 2001 Succession End notes
06 Jan 1993 Accession
29 Aug 2001 Accession
05 Jan 1989 Accession
28 May 1993 Succession End notes
06 Jul 1992 Succession End notes
17 Jun 1993 Accession
01 Aug 2001 Accession
15 Jan 1990 Accession
12 Jan 2012 Accession
21 Jul 1988 16 Dec 1988 Ratification
15 Dec 1989 Accession
10 Aug 1992 Accession
28 Jul 1993 Accession
02 Dec 1996 Accession
18 Mar 2019 Accession
29 Jan 1993 Accession
14 Oct 1997 Accession
16 Sep 1987 29 Jun 1988 Ratification
16 Sep 1987 28 Dec 1988 Ratification
12 Dec 1989 Accession
07 Jan 1998 Accession
15 Sep 1988 07 Jul 1989 Ratification
16 Sep 2009 Accession
16 Sep 1987 25 Feb 1991 Ratification
29 Jul 1998 Accession
28 Aug 1989 Accession
25 Sep 1989 Accession
18 Nov 1993 Accession
15 Jul 1993 Accession
20 Sep 1991 Accession
15 Sep 1988 15 Sep 1988 Ratification
18 Feb 1988 20 Sep 1988 Acceptance
22 Dec 1989 Accession
16 Sep 1987 16 Dec 1988 Ratification End notes
16 Apr 1993 Accession
16 Sep 1987 21 Apr 1988 Ratification
08 Jan 1991 Accession
18 May 1993 Accession
21 Nov 1994 Accession
16 Sep 1987 06 Feb 1989 Ratification
26 Jan 1994 Accession
21 Feb 1996 Accession
24 Jan 1990 Accession
03 Nov 1992 Accession

Declarations

European Union
Upon signature:"In the light of article 2.8 of the Protocol, the Community wishes to state that its signature takes place on the assumption that all its member states will take the necessary steps to adhere to the Convention and to conclude the Protocol."23 May 1989[See under chapter XXVII.2.]
Vatican City State
Declaration:“In acceding to the Vienna Convention on the Protection of the Ozone Layer and the Montreal Protocol on Substances that Deplete the Ozone Layer, as well as its four Amendments: London (1990), Copenhagen (1992), Montreal (1997) and Beijing (1999), the Holy See desires to encourage the entire International Community to be resolute in promoting authentic cooperation between politics, science and economics. Such cooperation, as has been shown in the case of the 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.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 accession, intends to give its own moral support to the commitment of States to the correct and effective implementation of the Treaties in question and to the attaining of the mentioned objectives. To this end, it expresses the wish that by recognizing ‘the signs of [an economic growth] that has not always been able to protect the delicate balances of nature’ (Homily of Pope Benedict XVI at Loreto, 2 September 2007), all actors will intensify the aforesaid cooperation and strengthen ‘the alliance between man and the environment, which must mirror the creative love of God, from whom we come and to whom we are bound’(Benedict XVI, After the Angelus, 16 September 2007).”

End Notes

Bosnia and Herzegovina

The former Yugoslavia had acceeded to the Protocol on 3 January 1991. See also note 1 under “Bosnia and Herzegovina”, “Croatia”, “former Yugoslavia”, “Slovenia”, “The Former Yugoslav Republic of Macedonia” and “Yugoslavia” in the “Historical Information” section in the front matter of this volume.
China

On 6 and 10 June 1997, the Secretary-General received communications concerning the status of Hong Kong from the Governments of the United Kingdom and China (see also note 2 under “China” and note 2 under “United Kingdom of Great Britain and Northern Ireland” regarding Hong Kong in the “Historical Information” section in the front matter of this volume). Upon resuming the exercise of sovereignty over Hong Kong, China notified the Secretary-General that the Convention with the reservation made by China will also apply to the Hong Kong Special Administrative Region.

In addition, the notification made by the Government of China contained the following declaration:

Provisions of article 5 of the [said Protocol] will not be applied to the Hong Kong Special Region.
Croatia

The former Yugoslavia had acceeded to the Protocol on 3 January 1991. See also note 1 under “Bosnia and Herzegovina”, “Croatia”, “former Yugoslavia”, “Slovenia”, “The Former Yugoslav Republic of Macedonia” and “Yugoslavia” in the “Historical Information” section in the front matter of this volume.
Czech Republic

Czechoslovakia had acceded to the Protocol on 1 October 1990. See also note 1 under “Czech Republic” and note 1 under “Slovakia” in the “Historical Information” section in the front matter of this volume.
Denmark

The decision, made on 20 December 1991, to reserve the application to Greenland and the Faroe Islands, was lifted by a notification received on 12 February 1997.
Germany

The German Democratic Republic had acceded to the Protocol on 25 January 1989. See also note 2 under “Germany” in the “Historical Information” section in the front matter of this volume.
Mauritius

On 9 January 2020, the Secretary-General received a communication from the Government of Mauritius relating to the Chagos Archipelago.

See C.N.48.2020.TREATIES-XXVII.2.a of 31 January 2020 for the text of the above-mentioned communication.

Montenegro

See note 1 under "Montenegro" in the "Historical Information" section in the front matter of this volume.
Netherlands

For the Kingdom in Europe, the Netherlands Antilles and Aruba.
New Zealand

Upon ratification the Government of New Zealand specified that the Protocol shall not apply to the Cook Islands and Niue.
North Macedonia

The former Yugoslavia had acceeded to the Protocol on 3 January 1991. See also note 1 under “Bosnia and Herzegovina”, “Croatia”, “former Yugoslavia”, “Slovenia”, “The Former Yugoslav Republic of Macedonia” and “Yugoslavia” in the “Historical Information” section in the front matter of this volume.
Portugal

On 19 October 1999, the Secretary-General received from the Government of China, the following communication:

In accordance with the Joint Declaration of the Government of the People's Republic of China and the Government of the Republic of Portugal on the Question of Macau (hereinafter referred to as the Joint Declaration), the Government of the People's Republic of China will resume the exercise of sovereignty over Macau with effect from 20 December 1999. Macau will, from that date, become a Special Administrative Region of the People's Republic of China and will enjoy a high degree of autonomy, except in foreign and defense affairs which are the responsibilities of the Central People's Government of the People's Republic of China.

In this connection, [the Government of the People's Republic of China informs the Secretary-General of the following:]

The Vienna Convention for the Protection of the Ozone Layer, which the Government of the People's Republic of China deposited the instrument of accession on 11 September 1989, as well as the Montreal Protocol on Substances that Deplete the Ozone Layer of 16 September 1987 and the Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer of 29 June 1990 (hereinafter referred to as the "Convention, the Protocol and the Amendment"), will apply to the Macau Special Administrative Region with effect from 20 December 1999. The Government of the People's Republic of China also wishes to make the following declaration:

Provisions of Article 5 of the Montreal Protocol on Substances that Deplete the Ozone Layer of 16 September 1987 will not be applied to the Macau Special Administrative Region, and provisions of paragraph 1 of Article 5 of the Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer of 29 June 1990 will not be applied to the Macau Special Administrative Region.

The Government of the People's Republic of China will assume responsibility for the international rights, and oligations arising from the application of the Convention, the Protocol and the Amendment to the Macau Special Administrative Region.

In reference to the communication made on 19 October 1999, the Government of China furthermore informs the Secretary-General of the following:

The above-mentioned declaration is solely to make the provisions of the Protocol that had previously applied to Macau continue to so apply to the Macau Special Administrative Region. The declaration is not purported to modify the obligations previously undertaken by Macau under the Protocol and is fully consistent with the objectives and purposes of the Protocol. In fact, the Chinese Government had made a statement of the same nature in the note of 6 June 1997 to the Secretary-General of the United Nations concerning the continuing application of the Protocol to the Hong Kong Special Administrative Region. The past two years and a half since Hong Kong's return to China saw a clear and full understanding on the part of the Parties to the Protocol of the approach adopted by the Chinese Government.
Serbia

The former Yugoslavia had acceeded to the Protocol on 3 January 1991. See also note 1 under “Bosnia and Herzegovina”, “Croatia”, “former Yugoslavia”, “Slovenia”, “The Former Yugoslav Republic of Macedonia” and “Yugoslavia” in the “Historical Information” section in the front matter of this volume.
Slovakia

Czechoslovakia had acceded to the Protocol on 1 October 1990. See also note 1 under “Czech Republic” and note 1 under “Slovakia” in the “Historical Information” section in the front matter of this volume.
Slovenia

The former Yugoslavia had acceeded to the Protocol on 3 January 1991. See also note 1 under “Bosnia and Herzegovina”, “Croatia”, “former Yugoslavia”, “Slovenia”, “The Former Yugoslav Republic of Macedonia” and “Yugoslavia” in the “Historical Information” section in the front matter of this volume.
United Kingdom of Great Britain and Northern Ireland

On 6 and 10 June 1997, the Secretary-General received communications concerning the status of Hong Kong from the Governments of the United Kingdom and China (see also note 2 under “China” and note 2 under “United Kingdom of Great Britain and Northern Ireland” regarding Hong Kong in the “Historical Information” section in the front matter of this volume). Upon resuming the exercise of sovereignty over Hong Kong, China notified the Secretary-General that the Convention with the reservation made by China will also apply to the Hong Kong Special Administrative Region.

In addition, the notification made by the Government of China contained the following declaration:

Provisions of article 5 of the [said Protocol] will not be applied to the Hong Kong Special Region.
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