During which flight rules will operations in Class A airspace typically be conducted?

Operations in Class A airspace are typically conducted under Instrument Flight Rules (IFR). This airspace begins at 18,000 feet mean sea level and extends up to and including 60,000 feet, where a high degree of traffic density and the presence of jet routes necessitate rigorous air traffic control oversight. Class A airspace is designated for aircraft operating under IFR to ensure safe and efficient use of the airspace by providing separation between aircraft and managing the flow of traffic.

While Visual Flight Rules (VFR) might be permissible in other classes of airspace, Class A specifically requires pilots to operate under IFR, as it involves controlled conditions and is intended for flights flying at high altitudes, where weather conditions may not be conducive to VFR operations. This requirement helps ensure that pilots navigate the busy environment of Class A safely and effectively, adhering to structured air traffic control procedures.