At the DA/MDA, what is required to continue descent to landing?

To continue descent to landing at the Decision Altitude (DA) or Minimum Descent Altitude (MDA), the presence of visual aids such as PAPI (Precision Approach Path Indicator) or VASI (Visual Approach Slope Indicator) is essential. These visual aids help pilots determine their glide path and ensure they are on the correct approach trajectory. When approaching the DA or MDA, pilots need to see the runway or acceptable visual references that confirm they are in a position to safely continue the landing procedure. If these visual cues are visible, pilots can then safely proceed with the descent.

The other options, while related to approaches and landing, do not specifically address the conditions required for continuing descent at DA/MDA. Clearance from ATC is necessary for certain procedures but is not the direct requirement for descending beyond this point in the approach phase. Similarly, while flight visibility is important, the minimum specified visibility does not alone provide sufficient visual references for the descent unless visual aids are also present. Weather conditions remaining VFR also do not guarantee the necessary visual references for a safe landing at the DA/MDA.