What are the CAT II minimums for decision height and RVR?

The decision height and runway visual range (RVR) standards set for Category II (CAT II) approaches are specifically designed for low visibility conditions. For CAT II operations, the decision height is set at 100 feet, and the RVR must be at least 1200 feet. This allows pilots to reliably execute approaches and landings in conditions where visibility is significantly reduced, ensuring passenger safety while allowing for more operational flexibility in poor weather conditions.

These standards are established by aviation regulatory authorities to ensure that the aircraft can be controlled adequately, and the landing can be completed safely, within the defined parameters. Maintaining a decision height of 100 feet enables pilots to have some altitude from which they can execute a go-around if the visual references are not clear by that point.

The other options present different decision heights and RVRs that do not align with the recognized CAT II minimum standards. Understanding these minimums is crucial for pilots and dispatchers to ensure adherence to operational limits and safety protocols when conducting approaches in adverse weather conditions.