| Taxation/Internal Revenue Code | Taxation/Internal Revenue Code | 84 |
| Defense | Defense | 32 |
| Homeland Security | Homeland Security | 28 |
| Labor Issues/Antitrust/Workplace | Labor Issues/Antitrust/Workplace | 27 |
| Agriculture | Agriculture | 14 |
| Food Industry (safety, labeling, etc.) | Food Industry (safety, labeling, etc.) | 12 |
| Economics/Economic Development | Economics/Economic Development | 9 |
| Environment/Superfund | Environment/Superfund | 8 |
| Communications/Broadcasting/Radio/TV | Communications/Broadcasting/Radio/TV | 7 |
| Aviation/Airlines/Airports | Aviation/Airlines/Airports | 5 |
| Government Issues | Government Issues | 5 |
| Medical/Disease Research/Clinical Labs | Medical/Disease Research/Clinical Labs | 4 |
| Transportation | Transportation | 4 |
| Natural Resources | Natural Resources | 4 |
| Foreign Relations | Foreign Relations | 4 |
| Animals | Animals | 4 |
| Science/Technology | Science/Technology | 3 |
| Health Issues | Health Issues | 3 |
| Apparel/Clothing Industry/Textiles | Apparel/Clothing Industry/Textiles | 3 |
| Telecommunications | Telecommunications | 2 |