This safety enhancement recommends a shared responsibility to ensure clear understanding of specific control instructions through the use of read-backs of any clearance to enter a specific runway, hold short of a specific runway, or “taxi into position and hold” instructions. It is currently the sole responsibility of the controller to seek and receive acknowledgement for these instructions.
The intent of this safety enhancement has been implemented through Federal Aviation Administration (FAA) Policy.
The Federal Aviation Administration (FAA) published Advisory Circulars (AC’s) AC120-74B and AC91-73B were published, providing for readback of all ATC instructions or clearances in the three specific areas. Additionally, the Office of Runway Safety issued related material recommending the readback of all ATC instructions or clearances. Finally, the readback requirements were published in the February 2005 issue of the Airman’s Information Manual (AIM).