National Airspace System

National Airspace System (NAS). The NAS consists of the overall environment for the safe operation of aircraft that are subject to the FAA's jurisdiction. It includes: air navigation facilities, equipment and services, airports or landing areas; aeronautical charts, information and services; rules, regulations and procedures, technical information, and manpower and material. Included are system components used by the DoD.

Source

32 CFR § 245.5

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Scoping language

For the purpose of this part, the words will and shall denote mandatory action by the affected person or agency(ies).

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