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 XI/14: Essential-use nominations for non-Article 5 Parties for controlled substances for 2000 and 2001

The Eleventh Meeting of the Parties decided in Dec. XI/14:

  1. To note with appreciation the excellent work done by the Technology and Economic Assessment Panel and its Technical Options Committees;
  2. That the levels of production and consumption necessary to satisfy essential uses of CFC-11, CFC-12, CFC-113 and CFC-114 for metered-dose inhalers for asthma and chronic obstructive pulmonary diseases, CFC-113 for torpedo maintenance, and halon 2402 for fire protection are authorized as specified in annex VII to the report of the Eleventh Meeting of the Parties, subject to the conditions established by the Meeting of the Parties in paragraph 2 of its decision VII/28;
  3. That the quantities approved in paragraph 2 above and all future approvals are for total CFC volumes with flexibility between CFCs within each group.
Annex VII: Essential use exemptions for 2000 and 2001