Subject
Federal aid to transportation
18
Transportation Law and legislation
9
Aeronautics, Commercial Law and legislation
5
Appropriations and expenditures
5
Highway law
5
Infrastructure (Economics) Finance
2
Infrastructure (Economics) Law and legislation
2
Job creation Law and legislation
2
Transportation Safety measures
2
Emergency medical services Law and legislation
1
Local transit Finance
1
Railroad law
1
Railroads Automatic train control
1
Railroads Finance
1
Roads Finance
1
Roads States Finance
1
Traffic safety
1
Transportation Finance
1
Transportation Safety measures Finance
1
Transportation and state
1
Veterans Medical care Law and legislation
1