Hon POTO WILLIAMS: The upcoming changes to the New Zealand building code's energy efficiency requirements will lift the minimum levels of insulation for new buildings. These changes are expected to reduce the energy needed for heating and cooling by about 40 percent for new homes and by about 23 percent for new large non-residential buildings. This will make new homes and buildings easier to heat and cool, healthier, and more comfortable. The changes will also provide clearer requirements for energy efficiency of heating, ventilation, and air conditioning systems in new commercial buildings.