51 Air transport

This division includes the transport of passengers or freight by air or via space. [0]

Includes

[0]

Also includes

[0]

Does not include

- crop spraying, see 0161
- repair and maintenance of aircraft or aircraft engines, see 3316
- operation of airports, see 5223
- aerial advertising (sky-writing), see 7311
- aerial photography, see 7420 [0]

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