| Energy/Nuclear | Energy/Nuclear | 26 |
| Environment/Superfund | Environment/Superfund | 21 |
| Science/Technology | Science/Technology | 17 |
| Transportation | Transportation | 6 |
| Waste (hazardous/solid/interstate/nuclear) | Waste (hazardous/solid/interstate/nuclear) | 2 |
| Roads/Highway | Roads/Highway | 2 |
| Food Industry (safety, labeling, etc.) | Food Industry (safety, labeling, etc.) | 2 |
| Budget/Appropriations | Budget/Appropriations | 2 |
| Housing | Housing | 2 |
| Clean Air and Water (quality) | Clean Air and Water (quality) | 2 |
| Fuel/Gas/Oil | Fuel/Gas/Oil | 2 |
| Urban Development/Municipalities | Urban Development/Municipalities | 2 |
| Manufacturing | Manufacturing | 2 |
| Natural Resources | Natural Resources | 2 |
| Defense | Defense | 1 |
| Education | Education | 1 |