The receiving controller must:
NOTE: When the beacon code received from the aircraft does not match the computer assigned beacon code, the code received (ERAM, MEARTS) or the site-adapted code (received, computer-assigned, or both for STARS) will be displayed in the data block. When the aircraft changes to the computer assigned code, the code is automatically removed from the data block. In this instance, the observance of code removal from the data block satisfies confirmation requirements.