The U.S. Environmental Protection Agency (EPA) recently announced a series of significant changes to the rules governing the use of refrigerants in heating, ventilation, and air conditioning (HVAC) systems. These changes, which were promulgated under the American Innovation and Manufacturing (AIM) Act, are designed to phase down the use of hydrofluorocarbons (HFCs), a class of potent greenhouse gases.

The AIM Act: A Game-Changer for HVAC Industry
The recent changes to refrigerant regulations by the EPA signify a substantial shift in environmental policy that will have profound implications for the construction industry. For the construction industry, this means a transition to next-generation technologies that do not rely on HFCs. The AIM Act’s sector-based restrictions will affect a wide range of equipment, including refrigeration and air conditioning systems integral to building design and function.

Starting January 1, 2025, the manufacturing or importing of any product in specified sectors that uses a regulated substance with a global warming potential of 700 or greater is prohibited (40 C.F.R. § 84.54(a)). The specified sectors listed include R-410A, the most common refrigerant used in the HVAC industry. The installation of systems using a regulated substance with a global warming potential of 700 or greater in specified sectors is allowed until January 1, 2026, provided that all system components are manufactured or imported before January 1, 2025. See 40 C.F.R. § 84.54 (c). “Installation” of an HVAC system is defined as the completion of assembling the system’s circuit, including charging it with a full charge, such that the system can function and is ready for its intended purpose. See 40 C.F.R. § 84.52.

Reprinted courtesy of Stefanie A. Salomon, Peckar & Abramson, P.C. and Nadia Ennaji, Peckar & Abramson, P.C.

Ms. Salomon may be contacted at ssalomon@pecklaw.com
Ms. Ennaji may be contacted at nennaji@pecklaw.com