Structure of SIC Code 45 - Transportation by Air
Hierarchy Industry: Transportation & Public Utilities
Categories: Each industry is classified within a hierarchy, starting from the general (3-digit) to more specific (4-digit) industry codes. The hierarchy also includes Extended SIC Codes, which provide an even more detailed 6-digit structure.
Categories
General
Specific
Hierarchy
3-Digits
4-Digits
6-Digits
451 - Air Transportation, Scheduled, and Air Courier
4522-01 - Helicopter-Charter & Rental Service
4522-02 - Air Ambulance Service
4522-03 - Aerial Personnel Lifts
4522-04 - Helicopter Charter & Tours
4522-05 - Air Sightseeing Tours
4522-06 - Airplane Rides
4522-98 - Air Transportation-Nonscheduled
4522 - Air Transportation, Nonscheduled
4581-01 - Aircraft Ground Support & Service Equip
4581-02 - Aircraft Engines-Servicing & Maintenance
4581-03 - Aircraft Ferrying & Transporting Service
4581-04 - Aircraft Servicing & Maintenance
4581-05 - Aircraft Storage
4581-06 - Airports
4581-07 - Aircraft Upholsterers
4581-08 - Helicopter-Servicing & Maintenance
4581-09 - Air Traffic Control Tower
4581-10 - Aircraft Refinishing & Painting
4581-11 - Airline Support Services
4581-12 - Aircraft Hangars-Rental & Sales
4581-13 - Aircraft Washing & Polishing
4581-14 - Aircraft Support Services
4581-15 - Airport Authority & Terminal Services
4581-16 - Aircraft-Restore & Customize
4581-17 - Sea Plane Base
4581-18 - Airport Services
4581-19 - Heliports
4581 - Airports, Flying Fields, and Airport Terminal Services