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 XXXI/9: Data and information provided by the parties in accordance with Article 7 of the Montreal Protocol

  1. To note that all parties which should have reported data to date under Article 7 of the Montreal Protocol have done so, and that 169 of those parties had reported their 2018 data by 30 September 2019, as required under paragraph 3 of Article 7 of the Montreal Protocol;
  2. To note with appreciation that 103 of those parties had reported their data by 30 June 2019, in accordance with the encouragement in decision XV/15, and that reporting by 30 June each year greatly facilitates the work of the Implementation Committee under the
    Non-Compliance Procedure for the Montreal Protocol and the Meeting of the Parties;
  3. 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 decision XV/15.