The U.S. Department of Energy has adopted new Federal energy conservation standard levels for residential central air conditioners and heat pumps that will apply as of January 2015.

Following a public comment period until mid October, the United States Department of Energy (DOE) reaffirmed efficiency standards for residential furnaces, central air conditioners and heat pumps that are manufactured in or imported into the United States at the levels already established by a June 2011 direct final rule.

The rule establishes regional energy conservation standards for the North, South, and Southwest regions of the United States applicable as of 1 January 2015: