The American Society of Heating, Refrigerating and Air-Conditioning Engineers have updated its Standard No. 169, “Climatic Data for Building Design Standards.” 

A U.S. appeals court has OK’d the agreement between government regulators and the HVAC industry that ends the years-long fight over regional furnace and air-conditioner efficiency standards.

The ongoing lawsuit over regional HVAC standards may be nearing an end. A proposed agreement was submitted March 11 to the U.S. Court of Appeals for the D.C. Circuit.