The Montreal Protocol on Substances that Deplete the Ozone Layer

The Montreal Protocol on Substances that Deplete the Ozone Layer is a global agreement to protect the Earth’s ozone layer by phasing out the chemicals that deplete it. This phase-out plan includes both the production and consumption of ozone-depleting substances. The landmark agreement was signed in 1987 and entered into force in 1989.

The parties to the Protocol meet once a year to make decisions aimed at ensuring the successful implementation of the agreement. These include adjusting or amending the Protocol, which has been done six times since its creation. The most recent amendment, the Kigali Amendment, called for the phase-down of hydrofluorocarbons (HFCs) in 2016. These HFCs were used as replacements for a batch of ozone-depleting substances eliminated by the original Montreal Protocol. Although they do not deplete the ozone layer, they are known to be powerful greenhouse gases and, thus, contributors to climate change.

The Montreal Protocol provided a set of practical, actionable tasks that were universally agreed on. The Protocol has successfully met its objectives thus far and continues to safeguard the ozone layer today. Thanks to the collaborative effort of nations around the world, the ozone layer is well on its way to recovery.

Decision XX/12: Data and information provided by the Parties in accordance with Article 7 of the Montreal Protocol

  1. To note with appreciation that 189 Parties out of the 191 which should have reported data for 2007 have now done so and that 75 of those Parties reported their data by 30June 2008 in conformity with decision XV/15;
  2. To note, however, that the following Parties have to date not reported data for 2007: Solomon Islands and Tonga;
  3. To note that their non-reporting of data places the Parties named above in non‑compliance with their data-reporting obligations under the Montreal Protocol until such time as the Secretariat receives their outstanding data;
  4. To urge those Parties, where appropriate, to work closely with the implementing agencies to report the required data to the Secretariat as a matter of urgency and to request the Implementation Committee to review the situation of those Parties at its next meeting;
  5. To note that a lack of timely data reporting by Parties impedes effective monitoring and assessment of Parties’ compliance with their obligations under the Montreal Protocol by the Implementation Committee and the Meeting of the Parties;
  6. To note further that reporting data by 30 June each year greatly facilitates the work of the Executive Committee of the Multilateral Fund for the Implementation of the Montreal Protocol in assisting Parties operating under paragraph 1 of Article 5 to comply with the control measures of the Montreal Protocol;
  7. To encourage Parties to continue to report consumption and production data as soon as figures are available, and preferably by 30 June each year, as agreed in decisionXV/15;