Environmental Protection Agency (EPA) MVAC Certification

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What refrigerant has recently been approved as an alternative to R-134a for automobile applications?

R-1234yf
R-152A
R-12
R-410A

The correct answer is: R-152A

R-1234yf is the refrigerant that has been recently approved as an alternative to R-134a for automobile applications. It was developed to improve environmental safety by having a lower global warming potential compared to R-134a, which is important for meeting regulatory standards set by the Environmental Protection Agency and other international agreements. R-1234yf is a hydrofluoroolefin (HFO) with a global warming potential of less than 1, making it significantly less harmful to the atmosphere than traditional refrigerants. It offers similar performance to R-134a while helping to reduce the impact of automotive air conditioning systems on climate change. The other refrigerants mentioned do not fit the criteria for recent approval as alternatives to R-134a in the context of automotive applications. R-152A, while used in some contexts, is not recognized as the primary replacement for automotive systems. R-12 is an older refrigerant and is no longer used due to its harmful ozone-depleting qualities. R-410A is primarily used in residential and commercial air conditioning systems and is not suitable for automotive applications.