Environmental protection concerns span a wide variety of issues, including clear air, water quality, chemical security, and environmental aspects of other major issue areas, such as energy, transportation, disaster relief and cleanup, and defense. This report provides an overview of key environmental issues receiving attention in the 109th Congress. A number of environmental measures have been the subject of congressional activity, some of them as part of comprehensive bills and laws on broader subjects such as energy and transportation. Appropriations for the Environmental Protection Agency (EPA) affect many of the programs and issues discussed in this report