• The U.S. Department of Energy (DOE) extended the comment period for its national 92 percent AFUE minimum energy-efficiency standard to July 10.
• The Building Performance Institute Inc. (BPI) announced revised portions of ANSI/BPI-2400-S-2012: “Standard Practice for the Standardized Qualification of Whole-House Energy Savings Predictions by Calibration to Energy Use History,” also known as the Delta Standard, are now available for public comment.