


The treaty that saved the sky.
In 1987, nations agreed to phase out the gases destroying Earth's ozone layer. Today 197 parties — including Seychelles, which ratified in 1993 — uphold the Montreal Protocol. The ozone layer is measurably healing.
Source: UNEP Ozone Secretariat · Seychelles country profile
From Vienna in 1985 to a workshop on Praslin this Tuesday.
- Chapter 01
What the ozone layer is
A thin shield of O₃ molecules, fifteen kilometres above us, that filters the Sun's hardest light.
4 min read - Chapter 02
The hole, and what caused it
How a generation of refrigerants, propellants and solvents punctured the stratosphere.
6 min read - Chapter 03
Today: the layer is healing
Universal ratification, falling concentrations, and Antarctic springs that are slowly closing.
5 min read - Chapter 04
Kigali — from a treaty to our reefs
Why phasing down HFCs is climate policy too — and Seychelles' step on R-410A.
7 min read
What we are working on now.
Latest news, training announcements, and compliance updates from the Ozone Unit.
The ozone layer is recovering. A look at 30 years of progress under the Montreal Protocol.
Guidance on transitioning from R-410A to lower-GWP refrigerant alternatives in Seychelles.
Celebrating the International Day for the Preservation of the Ozone Layer, 16 September 2024.
22 technicians certified in safe refrigerant handling at UNIDO-supported workshop on Praslin.
The Kigali Amendment HFC freeze takes effect in 2024. What Seychelles importers need to know.
Forms, reports, and the rules they live under.
Every document we publish lives here, with a last-updated date and a file size before you click. Importers can subscribe to receive new quota schedules by email.
- Import permit application forms
- Technician certification requirements
- Environment Protection (Ozone) Regulations 2000
- Country programme reports

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Reports may be made anonymously. Information is reviewed by the Ozone Unit and, where warranted, referred for investigation under the Environment Protection Act 2001.