| Transportation | Transportation | 16 |
| Health Issues | Health Issues | 16 |
| Travel/Tourism | Travel/Tourism | 11 |
| Medical/Disease Research/Clinical Labs | Medical/Disease Research/Clinical Labs | 9 |
| Taxation/Internal Revenue Code | Taxation/Internal Revenue Code | 7 |
| Homeland Security | Homeland Security | 6 |
| Marine/Maritime/Boating/Fisheries | Marine/Maritime/Boating/Fisheries | 4 |
| Aerospace | Aerospace | 3 |
| Sports/Athletics | Sports/Athletics | 2 |
| Urban Development/Municipalities | Urban Development/Municipalities | 2 |
| Defense | Defense | 2 |
| Waste (hazardous/solid/interstate/nuclear) | Waste (hazardous/solid/interstate/nuclear) | 1 |
| Clean Air and Water (quality) | Clean Air and Water (quality) | 1 |
| Housing | Housing | 1 |
| Government Issues | Government Issues | 1 |