EPA Refrigerant Rule Under Review: What Service Businesses Need to Know About the Transition Delay

What the Original Rule Required

The Technology Transition Rule, finalized in October 2023 and revised in December 2023, set specific thresholds for refrigerant global warming potential (GWP) in new equipment. For stationary air conditioning and heat pumps used in comfort cooling, the rule established a 700 GWP limit for most new systems, effective January 1, 2025. This requirement effectively eliminated production of most comfort cooling equipment using R-410A, a high-GWP refrigerant that has been standard in the HVAC industry for decades.

Commercial refrigeration systems faced tighter restrictions, with GWP limits of either 150 or 300 depending on equipment type, and compliance deadlines ranging from 2026 to 2028.

Industry Response and Legal Challenges

Major equipment manufacturers have already transitioned comfort cooling systems to A2L refrigerants such as R-32 and R-454B in preparation for the rule. However, trade groups have filed legal challenges and petitions, with some arguing that the supermarket refrigeration timeline violates the AIM Act and lacks adequate justification.

The reconsidering process injects uncertainty into supply chains and training schedules. Any revised rule cannot take effect until at least one year after its final publication, according to the AIM Act framework.

What This Means for Local Service Businesses

For HVAC, plumbing, and appliance-repair contractors, this reconsideration presents both challenges and tactical considerations:

• Equipment inventory and sourcing: The 2025 deadline created urgency for manufacturers to clear remaining R-410A stock and stock new A2L-compatible equipment. A delayed rule could shift supply priorities, potentially affecting lead times and pricing if manufacturers reduce production of lower-GWP units.
• Technician training: A2L refrigerants require different handling, safety protocols, and certification compared to traditional HCFCs. Many technicians have already invested time and money in recertification. A pause in enforcement might slow adoption of these training requirements across the industry.
• Customer communication: Homeowners and business owners have received messaging about refrigerant transitions and replacement timelines. Uncertainty from EPA reconsideration may generate confused or delayed purchasing decisions, particularly for systems that are still functioning but nearing end-of-life.
• Competitive positioning: Service companies that have already invested in A2L-compatible equipment and trained staff may see a temporary advantage eroded if larger competitors wait to see how the reconsideration resolves before making similar commitments.

Planning for Contingency

Industry trade associations have indicated that the reconsideration does not materially change near-term expectations about the EPA's overall direction on lower-GWP refrigerants. However, the extended timeline creates room for service businesses to clarify their own transition strategies without rushing into changes.

Owners should monitor EPA announcements closely and maintain flexibility in equipment sourcing and training schedules. Staying informed about any revised deadlines will be essential for managing customer expectations and inventory decisions over the coming months.