Which term refers to a directive issued by an air traffic control unit for air traffic control purposes?

Which term refers to a directive issued by an air traffic control unit for air traffic control purposes?

• A. Clear
• B. Air Traffic Control Instruction
• C. Air Traffic Control Clearance
• D. Flight Information Service

Answer: (B)

Air Traffic Control Instruction is the term that covers directives issued by an ATC unit for managing air traffic. These instructions are mandatory commands that guide pilots on what to do to keep traffic safe and orderly, such as specific headings to fly, altitudes to maintain, speed restrictions, or instructions to hold. A clearance, while also issued by ATC, is a specific authorization to perform a particular operation (like takeoff, landing, or following a defined route), which is narrower in scope than the general category of instructions ATC uses to control traffic. Flight Information Service provides information only, not a directive, and a standalone “clear” isn’t used as a complete directive in itself.

Air Traffic Control Instruction is the term that covers directives issued by an ATC unit for managing air traffic. These instructions are mandatory commands that guide pilots on what to do to keep traffic safe and orderly, such as specific headings to fly, altitudes to maintain, speed restrictions, or instructions to hold.

A clearance, while also issued by ATC, is a specific authorization to perform a particular operation (like takeoff, landing, or following a defined route), which is narrower in scope than the general category of instructions ATC uses to control traffic. Flight Information Service provides information only, not a directive, and a standalone “clear” isn’t used as a complete directive in itself.