A professional who coordinates movement of air traffic between altitude sectors and control centers to provide maximum separation and safety for aircraft. Responsibilities include:

• Maintains radio and telephone contact with air-traffic coordinators in adjoining control centers.
• Relays information regarding air traffic by radio to air-traffic-control specialist, tower and air-traffic-control specialist, station, monitoring each sector, for transmittal to airplane pilot, commercial.
• Relays information, such as altitude, expected time of arrival, and course.
• Determines procedure and time for altitude changes to prevent collisions and excessive traffic buildup in flight sector.
• Completes daily activity report.