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.

EPA's website will operate in a diminished capacity on Saturday Feb 17, 2018 from 8:00 a.m. to noon EST for routine maintenance. Some services, such as search, may be temporarily unavailable for brief periods during this time. We apologize for any inconvenience.

Green Engineering

Green engineering is the design, commercialization, and use of processes and products  that minimize pollution, promote sustainability, and protect human health without sacrificing economic viability and efficiency.

Computer-Based Tools