If diverting to a filed alternate due to below minimums, what is true about the use of GPS?

Flying a GPS-based approach when diverting to a filed alternate due to below minimums is permissible in specific circumstances. When there is the presence of an operational ground-based NAVAID, the use of a GPS approach is allowed, provided it meets the regulatory requirements and the pilot is appropriately trained and certified. This option reflects the flexibility of using modern GPS technology in conjunction with traditional navigation aids, enhancing safety and operational efficiency.

It's important to note that the existence of an operational ground-based NAVAID enables the pilot to have a backup system in place. This ensures that if the GPS navigation system fails or does not perform accurately, the pilot can still rely on the traditional NAVAID for safe navigation and completion of the approach. Therefore, utilizing a GPS-based approach alongside available ground-based systems is a valid practice that enhances operational effectiveness while adhering to regulatory guidelines.