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Vienna Convention for the Protection of the Ozone Layer

Belarus
Signature and acceptance by the Byelorussian Soviet Socialist Republic.
Bosnia and Herzegovina
Accession by the Socialist Federal Republic of Yugoslavia: April 16, 1990; Entry into force: July 15, 1990. Notification of succession by the Republic of Bosnia and Herzegovina: September 1, 1993. Entry into force date given as date of State succession.
Croatia
Accession by the Socialist Federal Republic of Yugoslavia: April 16, 1990; Entry into force: July 15, 1990. Notification of succession by the Republic of Croatia: September 21, 1992. Entry into force date given as date of independence.
Czech Republic
Accession by the Czech and Slovak Federal Republic: October 1, 1990; Entry into force: December 30, 1990. Notification of succession by the Czech Republic: September 30, 1993. Entry into force date given as date of independence.
Democratic Republic of the Congo
Accession by the Republic of Zaire.
European Union (EU)
Signature and approval by the European Economic Community.
Germany
Dates apply to the Federal Republic of Germany.
German Democratic Republic - Accession: January 25, 1989; Entry into force: April 25, 1989.
Libya
Accession by the Libyan Arab Jamahiriya.
Montenegro
Accession by the Socialist Federal Republic of Yugoslavia: April 16, 1990; Entry into force: July 15, 1990. Notification of succession by the Federal Republic of Yugoslavia: March 12, 2001; Entry into force: April 27, 1992. Notification of succession by Montenegro: October 23, 2006. Entry into force date given as date of independence.
North Macedonia
Accession by the Socialist Federal Republic of Yugoslavia: April 16, 1990; Entry into force: July 15, 1990. Notification of succession by the former Yugoslav Republic of Macedonia: March 10, 1994. Entry into force date given as date of succession of State.
Russian Federation
Signature and acceptance by the Union of Soviet Socialist Republics.
Serbia
Accession by the Socialist Federal Republic of Yugoslavia: April 16, 1990; Entry into force: July 15, 1990. Notification of succession by the Federal Republic of Yugoslavia: March 12, 2001. Entry into force date given as date of independence.
Slovakia
Accession by the Czech and Slovak Federal Republic: October 1, 1990; Entry into force: December 30, 1990. Notification of succession by the Slovak Republic: May 28, 1993. Entry into force date given as date of independence.
Slovenia
Accession by the Socialist Federal Republic of Yugoslavia: April 16, 1990; Entry into force: July 15, 1990. Notification of succession by the Republic of Slovenia: July 6, 1992. Entry into force date given as date of independence.
Ukraine
Signature and acceptance by the Ukrainian Soviet Socialist Republic.