With the current emphasis in green building, many home builders may find themselves wondering how to be acknowledged for building green. Additionally, homebuyers may want to know that they're buying a house that has been vetted and certified as a green structure. To this end, there are a number of programs outlining attributes of green building. FHB contributing writer Matthew Teague sorts through the data and offers details on the three big national programs and the multitude of local, state, and regional programs. Nationally, the key green-building programs are LEED for Homes, an offshoot of the commercial LEED program; the National Green Building Standard, which was initiated by the National Association of Home Builders; and Environments for Living, which was originally launched in 2001 and was revamped in 2007. Local and regional programs allow builders to craft houses that are appropriate for regional climates and environments. Among the notable local and regional programs are Georgia's EarthCraft Homes, Texas's Austin Energy Green Building, and Oregon's Earth Advantage.