| Energy/Nuclear | Energy/Nuclear | 124 |
| Foreign Relations | Foreign Relations | 55 |
| Defense | Defense | 34 |
| Computer Industry | Computer Industry | 29 |
| Fuel/Gas/Oil | Fuel/Gas/Oil | 15 |
| Environment/Superfund | Environment/Superfund | 14 |
| Communications/Broadcasting/Radio/TV | Communications/Broadcasting/Radio/TV | 12 |
| Postal | Postal | 10 |
| Aviation/Airlines/Airports | Aviation/Airlines/Airports | 8 |
| Medical/Disease Research/Clinical Labs | Medical/Disease Research/Clinical Labs | 7 |
| Disaster Planning/Emergencies | Disaster Planning/Emergencies | 5 |
| Telecommunications | Telecommunications | 2 |
| Trade (domestic/foreign) | Trade (domestic/foreign) | 2 |
| Health Issues | Health Issues | 2 |
| Transportation | Transportation | 1 |
| Homeland Security | Homeland Security | 1 |