Understanding A2L Refrigerants for Air Conditioners
ACHR News - 2. Drivers of Change - The Kigali Agreement
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The Kigali Agreement
The most recent revision of the Montreal Protocol
Created in October 2016, became effective globally on Jan.1, 2019.
It has been ratified by 88 countries as of this October
The Kigali Amendment added restrictions to the Montreal Protocol on substances with
global warming potential (GWP), which will result in a phasedown of refrigerants with
higher GWP and a transition to lower-GWP refrigerants.
The goal is to reduce usage of existing refrigerants to just 15% of the baseline by 2037.
Position of the U.S.
The U.S. has no ratified the Kigali
Amendments.
No federal policy or regulation exists at
this time to reduce higher GWP
refrigerants.
State Level
• Some states are moving ahead in the
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absence of nationwide action.
California is leading the activity. Proposed
is a limit of GWP<750 for refrigerant in
new air conditioners effective Jan. 1. 2023.
Count
Currently in a regulatory rulemaking process as of July 2019
8
Have indicated will begin a regulatory rulemaking process in 2019
15
Considering legislative bills granting authority to state agencies to create HFC phasedown rules
States & Territories in the US Climate Alliance but have not begun the legislative or regulatory process
■ FIGURE 1: Map of U.S. state activities regarding higher-GWP HFC phasedowns.
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