What additional altitude is required for MDA/DA when operating with minimums at a provisional airport?

When operating with minimums at a provisional airport, an additional altitude of 100 feet is required for the Minimum Descent Altitude (MDA) or Decision Altitude (DA). This requirement is in place to account for the challenges and uncertainties often encountered at provisional airports, which may not have the same level of infrastructure, navigational aids, or reliability as fully certified airports.

The added altitude provides an increased margin for safety, allowing pilots to ensure they can clear any potential obstructions or terrain while executing an approach. This precaution is particularly important in environments that may not be as well-documented or familiar to pilots, thus fundamentally promoting a heightened level of caution and safety during landing procedures.