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 XXIII/28: Request by Tajikistan for the revision of its baseline data

Noting that Tajikistan has submitted a request for the revision of its consumption data for the Annex C, group I, controlled substances (hydrochlorofluorocarbons) for the baseline year 1989 from 6.0 ODP‑tonnes to 18.7 ODP‑tonnes,

Noting also that decision XV/19 sets out the methodology for the submission and review of requests for the revision of baseline data,

Noting with appreciation the efforts by Tajikistan to fulfil the information requirements of decision XV/19, in particular its efforts to verify the accuracy of its proposed new baseline data through a national survey of hydrochlorofluorocarbon use carried out with the assistance of the UnitedNations Development Programme and funding from the Global Environment Facility,

  1. That Tajikistan has presented sufficient information, in accordance with decision XV/19, to justify its request for the revision of its baseline consumption data for hydrochlorofluorocarbons;
  2. To revise the baseline consumption data of Tajikistan for hydrochlorofluorocarbons for the year 1989 from 6.0 ODP-tonnes to 18.7 ODP-tonnes;