Subject Topical
- Disaster relief36
- Transportation36
- Interstate Highway System32
- Air travel31
- Coal--Transportation31
- Environmental protection31
- Historic preservation31
- Local transit31
- Petroleum industry and trade--United States31
- Pollution31
- Wild and scenic rivers31
- Black Lung Trust Fund30
- Airports29
- Social Security29
- Budget27
- Elections27
- Employment27
- Strip mining26
- Tourism26
- Acid rain25