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.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

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"The G3 Digest" is designed to incorporate and disseminate information on sustainable products and practices related to:

  • sustainable transportation,
  • green infrastructure,
  • innovative storm water management,
  • low impact development,
  • context sensitive solutions, and
  • innovations in transportation and community planning, economics, career development, policy, legislation and funding