What does IFR stand for?

• A. Instrument Flight Rules
• B. Integrated Flight Requirements
• C. Inland Flight Regulations
• D. Immediate Flight Routing

Answer: (A)

Instrument Flight Rules means operating an aircraft primarily by reference to the cockpit instruments under weather conditions that don’t allow for safe visual flying. When flying IFR, a pilot files an IFR flight plan, gets an ATC clearance, and follows instrument guidance for navigation, altitude, and routing, relying on instruments and air traffic control for separation rather than visual cues. This framework is distinct from Visual Flight Rules, which rely on maintaining visual reference to the ground and other aircraft. The other phrases aren’t recognized aviation terms, so they don’t describe how flights are controlled under instrument meteorological conditions.