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rule of the air

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Definition of rule of the air

: a provision of the code of regulations governing matters of air traffic (as the meeting and overtaking of other aircraft, the use of defined air lanes of travel, or the height of flying over cities)

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“Rule of the air.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rule%20of%20the%20air. Accessed 7 Mar. 2021.

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