Status of Ratification

Ratification of
Countries
UNIVERSAL RATIFICATION
On 16th September 2009, the Vienna Convention and the Montreal Protocol became the first treaties in the history of the United Nations to achieve universal ratification.

The table below shows the status of Ratification, Accession, or Approval of the agreements on the protection of the stratospheric ozone layer as provided by the Depositary, the United Nations Office of Legal Affairs, New York.

As of 19 September 2014, the status of ratification is as follows:

Check/Tick to display Parties that have NOT Ratified the selected Amendment

Selected Parties: United States of America

COUNTRY
Signature Vienna Convention
Signature Montreal Protocol
Vienna Convention
Montreal Protocol
London Amendment
Copenhagen Amendment
Montreal Amendment
Beijing Amendment
TOTALS
28
46
197
197
197
197
197
196
1. United States of America
22.03.1985
16.09.1987
27.08.1986 R
21.04.1988 R
18.12.1991 R
02.03.1994 R
01.10.2003 R
01.10.2003 R
TOTALS
28
46
197
197
197
197
197
196
R
Ratification
Ac
Accession
At
Acceptance
Ap
Approval
Sc
Succession
* Entry into force is after ninety days following the date of ratification/accession/acceptance/approval of the treaties for new Parties.
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