TRANSCRITICAL CO2 AROUND THE WORLD REGULATIONS AND STANDARDS Globally, there are currently no legal uncertainties or restrictions concerning the use of CO2 in refrigeration systems. This avoids costly replacements in the future.1 However, there are safety requirements for working on-site and for the qualification and registration of technicians.
Canada’s HFC phasedown plan
Under the Montreal Protocol on Substances that Deplete the Ozone Layer – an international treaty designed to protect the ozone layer – the world’s economies agreed to phase out production and consumption of ozone depleting substances by 2030, with an earlier deadline of 2020 for developed countries. L
The Kigali Amendment to the Montreal Protocol – which aims to phase down the use and production of HFCs globally and which entered into force on January 1, 2019 – is accelerating the uptake of natural refrigerants, including CO2. Ninety-three (93) countries plus the EU have ratified it (as of June 2020). However, this number is every changing as more countries pledge their commitment to drastically scale down the use of HFCs. In addition, energy efficiency in the HVAC&R sector is increasingly being scrutinized at a global level. Spurred by the Paris Agreement reached among nearly 200 countries at the 21st Conference of the Parties (COP21) to the United Nations Framework Convention on Climate Change (UNFCCC), the Parties committed to set climate and energy targets to keep the global temperature rise below 2°C [3.6°F], while pursuing efforts to limit it to 1.5°C [2.7°F] (compared to preindustrial levels) by 2100.
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Transcritical CO2 today
U.S. Climate Alliance
EU F-Gas Regulation Japan’s F-Gas Law
Regulatory measures
Australia’s HFC phasedown
Fiscal measures & incentives Standards
Base
NZ HFC phase-down