These rules by the Department of Energy (DOE) set new energy conservation standards for central air conditioners and central air conditioning heat pumps. These units must meet the standards for Seasonal Energy Efficiency Ratio and Heating Seasonal Performance Factor. Some standards require compliance from all new units manufactured on or after January 1, 2015 and before January 1, 2023, while other standards apply for units manufactured on or after January 1, 2023. These standards are part of the DOE's Energy Conservation Program for Consumer Products, under 10 CFR 430.32(c).