all public and private projects located in pud areas within mandaue city are obliged to comply with this ordinance with heritage or cultural buildings and postdisaster infrastructure exempted while other projects have the choice to comply with the ordinance or not iiee the city lias also employed the use of the building for ecologically responsive design excellence berde green building rating system as a tool to measure assess verify and monitor the environmental performance of building projects in terms of management use of resources and mitigation of emissions the green building ordinance requires building owners to use environmentallyfriendly construction methods and resources that would have less damaging effects on the environment