- Bus transportation (17)
- Bus line operations (10)
- Commuter bus operation (5)
- Street and trolley car transportation (1)
- Airport transportation (48)
- Airport limousine, scheduled service (10)
- Airport transportation services, regular route (8)
- Passenger rail transportation (2)
- Commuter rail passenger operation (1)
- Local railway passenger operation (1)
- Cable cars, except aerial, amusement, and scenic (1)
