The Vienna Convention for the Protection of the Ozone Layer and the Montreal Protocol on Substances that Deplete the Ozone Layer logo was developed to provide a distinct brand for the two treaties across various communication assets and applications. The visual identity guideline is designed to provide a comprehensive overview of applications and correct use of the logo.
On 15 October 2016, in Kigali, the parties to the Mon- treal Protocol on Substances that Deplete the Ozone Layer (the Montreal Protocol) reached agreement at their 28th Meeting to phase down consumption and production of hydrofluorocarbons (HFCs). They adopted an amendment (the Kigali Amendment) in Decision XXVIII/1. This briefing note has been prepared by the Secretar- iat of the Montreal Protocol to help Parties to the Pro- tocol prepare for ratification, acceptance, or approval of the Kigali Amendment.
The Protocol, along with the Vienna Convention, achieved universal participation on 16 September 2009 – the first treaties of any kind in the history of the United Nations system to achieve that aspiration.
This edition has been updated to include all relevant information from 1989 to date.
The purpose of this briefing note is to provide background information about the following areas:
"The views of the authors presented in the scientific papers are their own. They do not represent the views or policy of the Ozone Secretariat or the Parties to the Vienna Convention and the Montreal Protocol. No official endorsement should be inferred. The Ozone Secretariat does not make any warranty or representation, either express or implied, with respect to the accuracy of the information contained therein and it does not assume any liability of any kind resulting from the use or reliance upon any information contained in those papers including links to websites".