Plenty of websites exist that list and evaluate "green” products. Now more cities, including Seattle, are building lists of "approved” products and service providers. San Francisco, however, has stepped it up a notch, and has released a comprehensive site that meets the City by the Bay’s environmental and health requirements.
Back in 2005 San Francisco’s Board of Supervisors passed legislation, The Precautionary Principle, which required its procurement officers to adhere to an approved list of environmentally preferable, or "green,” products.