What altitude type is included in IFR NORDO procedures?

The correct choice is minimum IFR altitude, as it is a crucial component of IFR NORDO (No Radio) procedures. When an aircraft experiences communication failure while under Instrument Flight Rules (IFR), pilots must adhere to specific guidelines to ensure safety and compliance with air traffic control protocols.

Minimum IFR altitude refers to the lowest altitude that an aircraft can operate while still maintaining safe vertical separation from terrain and obstacles, as well as ensuring a safe route of flight. This altitude provides a buffer against collisions and terrain hazards, allowing pilots to navigate safely in the absence of communication with air traffic control.

By following the minimum IFR altitude in NORDO situations, pilots can more effectively manage their flight paths, maintaining safe separation from other aircraft and the ground even without the ability to communicate. This adherence to altitude standards helps ensure the safety of both the aircraft and those operating around it during critical communication failures.