This U.S. industry comprises establishments primarily engaged in operating local and suburban passenger transportation systems using buses or other motor vehicles over regular routes and on regular schedules within a metropolitan area and its adjacent nonurban areas.

• Bus line, local (except mixed mode)
• Bus services, urban and suburban (except mixed mode)
• Bus transit systems (except mixed mode)
• City bus services (except mixed mode)
• Commuter bus operation (except mixed mode)
• Local bus services (except mixed mode)
• Suburban bus line services (except mixed mode)
• Urban bus line services (except mixed mode)