What does IFR stand for in aviation regulations?

In aviation regulations, IFR stands for Instrument Flight Rules. This set of rules governs the operation of aircraft in conditions requiring the use of instruments for navigation and control, rather than visual cues. IFR is essential for pilots flying in low visibility conditions, such as through clouds or heavy precipitation, where visual flight is not possible. Under Instrument Flight Rules, pilots must adhere to specific procedures and maintain adherence to air traffic control instructions, ensuring safe separation from other aircraft and compliance with altitude and routing airways designed for instrument navigation. Understanding IFR is crucial for pilots as it represents a foundational aspect of flying safely in various weather conditions.