International Standard Industrial Classification of All Economic Activities, Rev.4Harmonized Commodity Description and Coding System
ISIC Rev 4 51 to HS 2022
No direct ISIC Rev 4 to HS 2022 mapping is available for code 51. Related crosswalks to other systems appear below.
About ISIC Rev 4 51
51 Air transportThis division includes the transport of passengers or freight by air or via space. This division excludes: - crop spraying, see 01.61 - repair and maintenance of aircraft or aircraft engines, see 33.16 - operation of airports, see 52.23 - aerial advertising (sky-writing), see 73.11 - aerial photography, see 74.20