What is the required visibility for a Non-Precision Approach as per standard IFR alternate criteria?

For a Non-Precision Approach under standard IFR alternate criteria, the required visibility minimum is indeed 2 statute miles (SM). This requirement is set to ensure that pilots have a reasonable chance of seeing the runway environment to safely execute the approach and landing.

Non-Precision Approaches typically do not have electronic glide slope guidance, which means that pilots rely more heavily on visual cues as they descend toward the runway. The 2 SM visibility standard ensures that pilots can visually acquire the runway and make safe navigation decisions as they approach their landing.

In contrast, options that suggest 1 SM, 3 SM, or ½ SM visibility are not sufficient for safe operations under these criteria, as they do not comply with the established regulations necessary for the type of approach being conducted. The use of 2 SM as the standard significantly enhances safety during the critical stages of landing, particularly under instrument flight rules where visibility conditions may already be challenging.