This subsector comprises establishments primarily engaged in for-hire, common-carrier transportation of people and/or goods using aircraft, such as airplanes and helicopters. Transportation and warehousing

This subsector comprises establishments primarily engaged in operating railways. Establishments primarily engaged in the operation of long-haul or mainline railways, short-haul railways and passenger railways are included. Transportation and warehousing

This subsector comprises establishments primarily engaged in the water transportation of passengers and goods, using equipment designed for those purposes. Transportation and warehousing

This subsector comprises establishments primarily engaged in the truck transportation of goods. These establishments may carry general freight or specialized freight. Specialized freight comprises goods that, because of size, weight, shape or other inherent characteristics, require specialized equipment for transportation.

This subsector comprises establishments primarily engaged in a variety of passenger transportation activities, using equipment designed for those purposes. These activities are distinguished based on process factors, such as whether routes are scheduled, run over fixed routes, and charged on

This subsector comprises establishments primarily engaged in the transport of goods by pipeline. The pipelines are designed to specifications for the transport of a particular good, such as crude oil, natural gas and refined petroleum products. Pipeline transportation includes integrated

This subsector comprises establishments primarily engaged in providing recreational transportation, such as sightseeing or dinner cruises, steam train excursions, horse-drawn sightseeing rides, air-boat rides or hot-air balloon rides. These establishments often use vintage or specialized transportation equipment. The services provided

This subsector comprises establishments primarily engaged in providing services to other transportation establishments. These services may be specific to a mode of transportation, or they may be multi-modal. Transportation and warehousing

This subsector comprises establishments primarily engaged in operating the postal service. Establishments of the Post Office, other than those primarily engaged in providing courier services, are classified in this industry, as well as establishments that carry on one or more

This subsector comprises establishments primarily engaged in providing courier delivery services; or messenger and delivery services of small parcels within a single urban area. Transportation and warehousing

This subsector comprises establishments primarily engaged in operating general merchandise, refrigerated and other warehousing and storage facilities. Included in this subsector are third-party warehouses serving retail chains and wholesalers. Establishments in this subsector provide facilities to store goods for customers.