"The Green Building Initiative sets up a rating system and corresponding tax incentives for green building considerations. The rating system applies to most municipal and commercial buildings. The rating system requires material considerations such as; developing a construction waste management plan, materials reuse, use of rapidly renewable materials, waste diversion and reduction. There are also requirements for the reduction of air pollution on the construction site, as well as energy and water efficiency in the final design. Tax incentives are tied to how many points in the rating system are achieved, with up to 25% real property tax reduction possible."

(Source: C40's Clean Construction Policy Explorer)