Who must maintain two-way radio communication with ATCT when operating in the CMA?

• A. Pilots only
• B. Airfield drivers and pedestrians
• C. Maintenance crews
• D. Security personnel

Answer: (B)

In the CMA, safe movement hinges on coordinating with ATCT for anyone who is moving around the airfield. Two-way radio communication ensures ATCT can give instructions and receive position reports so aircraft and ground activity don’t collide. The best answer reflects that those who actually traverse the movement area—airfield drivers and pedestrians—must stay in contact with ATCT. Pilots are already in contact with ATCT during flight operations, so the emphasis here is on ground personnel who could cross runways or taxiways. Maintenance crews or security personnel may have their own communication needs, but the rule for CMA operations specifically targets drivers and pedestrians who must maintain that direct two-way link with ATCT to keep movements safe.