WZ 51—Air transport

Where 51 sits

1. H Transportation and storage
2. 51 Air transport

Contains 2 narrower codes

• 51.1 Passenger air transport
• 51.2 Freight air transport and space transport

What 51 includes

• This division includes the transport of persons and goods in the air and space travel.

What 51 excludes

• Agricultural pest control using aircraft, see 01.61.0
• Repair and maintenance of civil aircraft or aircraft engines, see 33.16.0
• Operation of airports, see 52.23.1
• Aerial advertising (skywriting), see 73.11.0
• Aerial photography, see 74.20.1
• Civil aerial surveillance, see 80.09.0
• Military aerial surveillance, see 84.22.0

51 in other systems