California adopts mandatory green building code

[iCalifornia's first-in-the-nation mandatory green building code will help the state meet its tough curbs on greenhouse gas emissions and its goal of deriving a third of its energy from renewable sources by 2020. "California continues to pave the way," said Gov. Arnold Schwarzenegger, praising the code adopted Tuesday by the California Building Standards Commission.][/i]

http://latimesblogs.latimes.com/greenspace/2010/01/green-building-code-california-usgbc.html