The City of Palm Springs was looking to design a policy that will produce cost and energy savings for mixed-fuel existing residential buildings undergoing renovations, with additional measures required for higher building permit values. They started with the Quick Guide and Building Stock Estimates. If your jurisdiction is in two climate zones, identify the boundary from the Climate Zone Search Tool on the CEC website. The City recommends doing a GHG inventory to have benchmarks to state GHG goals, to know the energy policy goals of your City and the CCA / IOU / POU that serves it, understanding the building stock, and the changes that need to be made and need to be filled in the updated Reach Codes.