The Kigali Amendment and the HFC phase-down

The agreement built to protect the ozone layer took climate gases into its scope: HFC consumption is being cut in steps, and Türkiye's schedule runs from 2024 to an 80 per cent cut in 2045.

23 April 2026Updated 28 September 2026

Short answer

The Kigali Amendment added a step-by-step phase-down of HFC gases to the Montreal Protocol; it was agreed on 15 October 2016 and entered into force on 1 January 2019. Türkiye ratified it on 10 November 2021 and committed to cut HFC consumption by 80 per cent in CO2 equivalent between 2024 and 2045. When buying a unit with refrigerant, check where its gas sits on that schedule; a eutectic box with no refrigerant is outside it.

HFCs do not harm the ozone layer, but some are strong greenhouse gases, with global warming potentials from 12 to 14,000. That is why the parties to the Montreal Protocol added HFCs to the controlled substances in Kigali in 2016.

Year	Cut (against the 2020-2022 baseline)
2024	Freeze
2029	10%
2035	30%
2040	50%
2045	80%

The table is the schedule of the developing-country group that follows the same 2024-2045 line as Türkiye. In Türkiye, labelling, quotas and leak checks fall under the Regulation on Fluorinated Greenhouse Gases. As the cuts narrow the amount of gas on the market, write the gas type and charge quantity on each unit's card. A passive box with eutectic plates holds no refrigerant, so it stays outside this schedule.