To ensure that all buildings are healthy, sustainable places to live, work and learn, the San Francisco Green Building Code requirements reduce energy and water use, divert waste from landfills, encourage alternate modes of transportation, and support the health and comfort of building occupants in San Francisco. The 2008 green building requirements apply to newly constructed residential and commercial buildings and for major renovations to existing buildings. New construction in San Francisco must meet all applicable California codes, provide on-site facilities for recycling and composting, and meet city green building requirements tied to the LEED and GreenPoint Rated green building rating systems.