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Montreal Protocol and control of ODS in Nepal

Short answer

The Montreal Protocol 1987 sets binding phase-out schedules for CFCs and HCFCs, with amendments and a Multilateral Fund. Nepal, party since 1994, controls ODS through the ODS Rules 2001, licensing, the National Ozone Unit, the HCFC Phase-out Management Plan, technician training, and achieved CFC phase-out by 2010.

Explain the Montreal Protocol and how it controls CFCs and HCFCs. Mention the steps taken to control ozone depleting substances (ODS) in Nepal.

Vienna Convention and Montreal Protocol

The Vienna Convention (1985) set up international cooperation to protect the ozone layer. The Montreal Protocol on Substances that Deplete the Ozone Layer (1987) is the treaty with binding limits on the production and consumption of ozone depleting substances (ODS). It has been amended several times (London 1990, Copenhagen 1992, Montreal 1997, Beijing 1999) and is regarded as the most successful environmental agreement.

Key features:

  • Controlled substances: CFCs, halons, carbon tetrachloride, methyl chloroform (fast phase-out), HCFCs (transitional substitutes), methyl bromide, HBFCs.
  • Phase-out schedule: developed countries phased out CFCs by 1996; developing countries (Article 5 parties) by 2010, after a grace period of about 10 years.
  • HCFCs: a freeze in 2013 for developing countries, with step reductions to 97.5% phase-out by 2030 and complete phase-out by 2040 (the small remainder being for servicing). HFCs replace them but are greenhouse gases, so the Kigali Amendment (2016) phases down HFCs.
  • Trade restrictions with non-parties, and reporting of data.
  • Multilateral Fund gives financial and technical help to developing countries, following the principle of "common but differentiated responsibilities".

Control of ODS in Nepal

  • Nepal became a party to the Vienna Convention and the Montreal Protocol in 1994 and is an Article 5 country.
  • The Ozone Depleting Substances Consumption (Control) Rules, 2001 (2058 BS) under the Environment Protection Act regulate the import, export, sale and use of ODS through licensing and quotas. Imports of CFC-based equipment are restricted.
  • The National Ozone Unit, housed in the Nepal Bureau of Standards and Metrology (under the Ministry of Industry), coordinates implementation; the Department of Customs checks imports.
  • Nepal prepared the HCFC Phase-out Management Plan (HPMP), trained refrigeration technicians and customs officers, and promoted recovery and recycling of refrigerants and their replacement with non-ODS refrigerants (hydrocarbons, HFCs).
  • Nepal reported the phase-out of CFC consumption in line with the 2010 target (as per the Ozone Unit reports).

✓ Answer checked by Claude Opus 5.5 (high effort)

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