World News

Industry news and insights from Europe and around the World

UK News

Latest news and developments in the United Kingdom

Products

Keep up-to-date with the latest new products and technology

Features

General articles, applications and industry analysis

California enacts HFC refrigerant bans

USA: The state of California has today enacted unilateral prohibitions on high‑global warming potential hydrofluorocarbons.

The California Cooling Act affects new and retrofit equipment. Manufacturers cannot sell equipment using prohibited refrigerants that are manufactured after January 1, 2019. It is based on the vacated US EPA SNAP Rule 20 and 21, with the exception of motor vehicle air-conditioning. It prohibits high GWP HFC refrigerants, such as R404A and R507A, in supermarket systems, condensing units, and self-contained units.

In addition to prohibiting specific high-GWP HFCs, the California Cooling Act also establishes an incentive programme for early adoption of low-GWP technology in refrigeration systems.

The original EPA SNAP rules were rolled back after the US Court of Appeals for the District of Columbia’ decided that the EPA could not use a section of the Clean Air Act to target HFCs.

California voted to pass the California Cooling Act in August last year. It is expected to reduce HFC emissions by up to 17 million tonnes CO2 equivalent annually by 2030.

Related stories:

California votes to restrict HFC use31 August 2018
USA: California has voted to pass the California Cooling Act which will restrict the use of high GWP HFC refrigerants and other HFC compounds. Read more…

California approves original SNAP rules – 24 March 2018
USA: The California Air Resources Board (CARB) yesterday adopted the EPA’s proposed SNAP rules to reduce emissions of HFC refrigerants despite the US Court of Appeal declaring them illegal. Read more…

Latest News

20th July 2026

EPEE calls for heating and cooling initiative

BELGIUM: The European Partnership for Energy and the Environment (EPEE) has called for a dedicated European heating and cooling initiative, accompanied by financial support and fiscal incentives.
19th July 2026

HPA UK lines up first conference

UK: Tickets are now on sale for HPA UK’s first annual conference since its formation in January from the merger of the three main UK heat pump associations. 
19th July 2026

Exploring dehumidification in air conditioning

FRANCE: A new technical brief from the International Institute of Refrigeration (IIR) reviews typical air conditioning processes involving dehumidification and major air dehumidification technologies.
19th July 2026

EC seeks reduction in electricity-to-gas price ratios

EUROPE: The European Commission is asking member states to bring down domestic electricity-to-gas price ratios to a maximum of 2.5 and to a maximum of 2 for industry by 2030.
17th July 2026

Daikin NEXIO Max rooftop heat pump on R32

USA: Daikin Comfort Technologies North America has launched the Daikin NEXIO Max packaged heat pump, an inverter-driven rooftop unit using R32 refrigerant.
17th July 2026

MHI ships 10MW chiller for data centre tests

JAPAN: Mitsubishi Heavy Industries (MHI) has shipped its 10MW  centrifugal chiller test unit to the US in support of moves to address the power and cooling challenges of AI data…