EPA Section 608 Compliant

R-454B (Opteon XL41)
Leak Rate Compliance

Everything you need to know about R-454B compliance under the AIM Act and EPA Section 608. Correct thresholds, GWP data, and instant calculations.

Global Warming Potential
466
GWP Value (AR4)
Common Application
Low-GWP comfort cooling
Status
Regulated
AIM Act / Section 608

R-454B Leak Rate Thresholds (2026)

Equipment TypeTrigger RateAction Required
Commercial Refrigeration20%Repair within 30 days
Industrial Process30%Repair within 30 days
Comfort Cooling10%Repair within 30 days

Calculate R-454B Leak Rate

Use our EPA-compliant calculator to check your R-454B system status instantly.

Launch Calculator
20%
Limit

Related Refrigerants

R-134a
Tetrafluoroethane
R-32
Difluoromethane
R-448A
R-448A

Frequently Asked Questions about R-454B

What is the leak rate limit for R-454B?
For R-454B, the current EPA thresholds are:
  • 20% for Commercial Refrigeration
  • 30% for Industrial Process Refrigeration
  • 10% for Comfort Cooling
What is the GWP of R-454B?

R-454B has a Global Warming Potential (GWP) of 466. It is a regulated substance under the AIM Act and EPA Section 608.