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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.

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Calculation of control levels for production, consumption and baseline values of hydrofluorocarbons

This briefing note outlines the steps that will be used by the Secretariat in calculating the control levels for production, consumption and baseline values of hydrofluorocarbons (HFCs). The calculations will be based on the relevant definitions and provisions of the Montreal Protocol as adjusted and amended, including by the Kigali Amendment and taking into account the various decisions related to data reporting.

Briefing notes
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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.

Baselines:  Past practices and current challenges

The purpose of this briefing note is to provide background information about the following areas:

  • The baselines agreed under the Montreal Protocol to date for CFCs, carbon tetrachloride, HCFCs and methyl bromide, as examples, in both non-Article 5 and Article 5 parties;
  • The time lag between the year in which a decision was taken and the years of the baseline and initial control measures;
  • The baselines that have been put forward in the HFC amendment proposals.
Briefing notes