An official website of the United States government.
Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.
American communities have more options than ever for encouraging greener building and development. Many organizations have developed model codes or rating systems that communities can use to develop green building programs or revise building ordinances. Learn about some of the major options, which are listed below. You can view a side-by-side comparison by selecting the checkboxes of options that interest you, then clicking the Compare button below the table.
¹ In the building community, there is no consistent use or definition of the term "standard." EPA uses the term "standard" here in a broad sense to mean "something established by authority, custom, or general consent as a model or example: CRITERION" (Merriam-Webster). EPA uses it as an umbrella term to encompass model codes, rating systems, and other publications that provide criteria for the design, construction, and maintenance of buildings.
² Any standard can be adopted as a voluntary or mandatory program. We indicate here the intent of the authors.