1997 NAICS Definitions
488 Support Activities for Transportation

488 Support Activities for Transportation

Industries in the Support Activities for Transportation subsector provide services which support transportation. These services may be provided to transportation carrier establishments or to the general public. This subsector includes a wide array of establishments, including air traffic control services, marine cargo handling, and motor vehicle towing.

The Support Activities for Transportation subsector includes services to transportation but is separated by type of mode serviced. The Support Activities for Rail Transportation industry includes services to the rail industry (e.g., railroad switching and terminal establishments).

Ship repair and maintenance not done in a shipyard are included in Other Support Activities for Water Transportation. An example would be a floating drydock services in a harbor.

Excluded from this subsector are establishments primarily engaged in providing factory conversion and overhaul of transportation equipment, which are classified in Subsector 336, Transportation Equipment Manufacturing. Also, establishments primarily engaged in providing rental and leasing of transportation equipment without operator are classified in Subsector 532, Rental and Leasing Services.

4881 Support Activities for Air Transportation

This industry group comprises establishments primarily engaged in providing services to the air transportation industry. These services include airport operation, servicing, repairing (except factory conversion and overhaul of aircraft), maintaining and storing aircraft, and ferrying aircraft.

48811 Airport Operations

This industry comprises establishments primarily engaged in (1) operating international, national, or civil airports or public flying field or (2) supporting airport operations (except special food services contractors), such as rental of hangar space, air traffic control services, baggage handling services, and cargo handling services.

488111 Air Traffic Control

This U.S. industry comprises establishments primarily engaged in providing air traffic control services to regulate the flow of air traffic.

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NAICSSICCorresponding Index Entries
488111M Air traffic control services (except military)

488119 Other Airport Operations

This U.S. industry comprises establishments primarily engaged in (1) operating international, national, or civil airports, or public flying field or (2) supporting airport operations, such as rental of hangar space, and providing baggage handling and/or cargo handling services.

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NAICSSICCorresponding Index Entries
4881194581Aircraft hangar rental
4881194581Aircraft parking service
4881194581Airport baggage handling services
4881194581Airport cargo handling services
4881194581Airport operators (e.g., civil, international, national)
4881194581Airport runway maintenance services
4881194581Airports, civil, operation and maintenance
4881194581Aviation clubs, primarily providing flying field services to the general public
4881194581Flying field operators
4881194581Hangar rental, aircraft
4881194959Maintenance services, runway
4881194581Parking services, aircraft
4881194581Runway maintenance services
4881194959Vacuuming of airport runways

48819 Other Support Activities for Air Transportation

488190 Other Support Activities for Air Transportation

This industry comprises establishments primarily engaged in providing specialized services for air transportation (except air traffic control and other airport operations).

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NAICSSICCorresponding Index Entries
4881904581Aircraft ferrying services
4881904581Aircraft inspection services
4881904581Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory r
4881904581Aircraft testing services
4881904581Fueling aircraft on a contract or fee basis
4881904581Independent pilot, air (except owner-operators)
4881904581Inspection services, aircraft
4881904581Maintenance and repair services, aircraft (except factory conversion, factory overhaul, factory
4881904581Testing services, aircraft

4882 Support Activities for Rail Transportation

48821 Support Activities for Rail Transportation

488210 Support Activities for Rail Transportation

This industry comprises establishments primarily engaged in providing specialized services for railroad transportation including servicing, routine repairing (except factory conversion, overhaul or rebuilding of rolling stock), and maintaining rail cars; loading and unloading rail cars; and operating independent terminals.

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NAICSSICCorresponding Index Entries
4882104789Freight car cleaning services
4882104789Grain leveling and trimming in railroad cars
4882104789Loading and unloading services at rail terminals
4882104789Locomotive and rail car repair (except factory conversion, factory overhaul, factory rebuilding)
4882104789Maintenance of rights-of-way and structures, railway
4882104013Railroad switching services
4882104013Railroad terminals, independent operation
4882104013Railway terminals, independent operation
4882104212Shunting trailers in rail terminals
4882104013Switching services, railroad

4883 Support Activities for Water Transportation

48831 Port and Harbor Operations

488310 Port and Harbor Operations

This industry comprises establishments primarily engaged in operating ports, harbors (including docking and pier facilities), or canals.

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NAICSSICCorresponding Index Entries
4883104499Canal maintenance services (except dredging)
4883104499Canal operation
4883104491Docking facility operations
4883104491Harbor maintenance services (except dredging)
4883104491Harbor operation
4883104499Lighthouse operation
4883104491Maintenance services, waterfront terminal (except dredging)
4883104491Port facility operation
4883104499Seaway operation
4883104491Waterfront terminal operation (e.g., docks, piers, wharves)
4883104491Wharf operation

48832 Marine Cargo Handling

488320 Marine Cargo Handling

This industry comprises establishments primarily engaged in providing stevedoring and other marine cargo handling services (except warehousing).

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NAICSSICCorresponding Index Entries
4883204491Loading and unloading services at ports and harbors
4883204491Longshoremen services
4883204491Marine cargo handling services
4883204491Ship hold cleaning services
4883204491Stevedoring services

48833 Navigational Services to Shipping

488330 Navigational Services to Shipping

This industry comprises establishments primarily engaged in providing navigational services to shipping. Marine salvage establishments are included in this industry.

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NAICSSICCorresponding Index Entries
4883304499Cargo salvaging, marine
4883304492Docking and undocking marine vessel services
4883304492Harbor tugboat services
4883304499Marine salvaging services
4883304499Marine vessel traffic reporting services
4883304499Piloting services, water transportation
4883304499Radio beacon (i.e., ship navigation) services
4883304492Tugboat services, harbor operation

48839 Other Support Activities for Water Transportation

488390 Other Support Activities for Water Transportation

This industry comprises establishments primarily engaged in providing services to water transportation (except port and harbor operations; marine cargo handling services; and navigational services to shipping).

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NAICSSICCorresponding Index Entries
4883904785Cargo checkers, marine
4883904785Cargo surveyors, marine
4883903731Drydocks, floating (i.e., routine repair and maintenance of ships and boats)
4883904785Marine cargo checkers and surveyors
4883907699Ship scaling services not done at a shipyard
4883904785Vessel supply services

4884 Support Activities for Road Transportation

48841 Motor Vehicle Towing

488410 Motor Vehicle Towing

This industry comprises establishments primarily engaged in towing light or heavy motor vehicles, both local and long distance. These establishments may provide incidental services, such as storage and emergency road repair services.

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NAICSSICCorresponding Index Entries
4884107549Emergency road services (i.e., tow service)
4884107549Motor vehicle towing services
4884107549Tow truck services
4884107549Towing services, motor vehicle
4884107549Wrecker services (i.e., towing services), motor vehicle

48849 Other Support Activities for Road Transportation

488490 Other Support Activities for Road Transportation

This industry comprises establishments primarily engaged in providing services (except motor vehicle towing) to road network users.

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NAICSSICCorresponding Index Entries
4884904785Bridge, tunnel, and highway operations
4884904173Bus terminal operation, independent
4884904785Cargo surveyors, truck transportation
4884907389Driving services (e.g., automobile, truck delivery)
488490421MIndependent truck driver (except owner-operators)
4884904785Inspection or weighing services, truck transportation
4884904231Loading and unloading at truck terminals
4884907389Pilot car services (i.e., wide load warning services)
4884904231Shunting of trailers in truck terminals
4884904959Snow clearing, highways and bridges, road transportation
4884904959Snow removal, highway
4884904959Street cleaning service
4884904785Truck weighing station operation
4884904231Trucking terminals, independently operated

4885 Freight Transportation Arrangement

48851 Freight Transportation Arrangement

488510 Freight Transportation Arrangement

This industry comprises establishments primarily engaged in arranging transportation of freight between shippers and carriers. These establishments are usually known as freight forwarders, marine shipping agents, or customs brokers and offer a combination of services spanning transportation modes.

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NAICSSICCorresponding Index Entries
4885104731Agents, shipping
4885104731Customs brokers
4885104731Freight forwarding
4885104731Marine shipping agency
4885104731Shipping agents (freight forwarding)

4889 Other Support Activities for Transportation

48899 Other Support Activities for Transportation

This industry comprises establishments primarily engaged in providing support activities to transportation (except for air transportation; rail transportation; water transportation; road transportation; and freight transportation arrangement).

488991 Packing and Crating

This U.S. industry comprises establishments primarily engaged in packing, crating, and otherwise preparing goods for transportation.

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NAICSSICCorresponding Index Entries
4889914783Crating goods for shipping
4889914783Packing and preparing goods for shipping
4889914783Preparing goods for transportation (i.e., crating, packing)

488999 All Other Support Activities for Transportation

This U.S. industry comprises establishments primarily engaged in providing support activities to transportation (except for air transportation; rail transportation; water transportation; road transportation; freight transportation arrangement; and packing and crating).

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NAICSSICCorresponding Index Entries
4889994729Arrangement of car pools and vanpools
4889994729Car pools, arrangement of
4889994789Pipeline terminal facilities, independently operated
4889994789Stockyards (i.e., not for fattening or selling livestock), transportation
4889994729Vanpools, arrangement of