EPA Allows Increased Hydrocarbon Charge in Household Refrigerators

Last December, EPA proposed to modify the use conditions required for use of three flammable refrigerants — isobutane (R-600a), propane (R-290), and R-441A — in new household refrigerators, freezers, and combination refrigerators and freezers under the Significant New Alternatives Policy (SNAP) program to reflect an updated standard from Underwriters Laboratories (UL).

source https://www.achrnews.com/articles/139645-epa-allows-increased-hydrocarbon-charge-in-household-refrigerators