111th Congress (2009-2010)
- Children’s Health
- Clean Air and Nuclear Safety
- Green Jobs and the New Economy
- Oversight
- Superfund, Toxics and Environmental Health
- Transportation and Infrastructure
- Water and Wildlife
110th Congress (2007-2008)
- Clean Air and Nuclear Safety
- Private Sector and Consumer Solutions to Global Warming and Wildlife Protection
- Public Sector Solutions to Global Warming, Oversight, and Children's Health Protection
- Superfund and Environmental Health
- Transportation and Infrastructure
- Transportation Safety, Infrastructure Security, and Water Quality