Final answer:
Members permanently assigned to locations at increased elevation need to participate in the Physical Readiness Test (PRT) if their location is at an altitude greater than or equal to 5,000 feet above sea level.
Step-by-step explanation:
The Operating Guide states that members permanently assigned to locations at increased elevation need to participate in the Physical Readiness Test (PRT). In this context, increased elevation refers to locations that are at an altitude greater than or equal to 5,000 feet above sea level. So, if the location where the members are assigned is at 5,000 feet or higher above sea level, they are required to take the PRT.