Plain English Meaning

Instead of writing down your IFR clearance as a controller reads it over the radio, you receive it as a text message in the cockpit and confirm it electronically.

Full Definition

A method of receiving an IFR departure clearance as a text message in the cockpit, delivered through ACARS — a digital data link between the aircraft and ground stations — instead of by voice over the radio. The clearance is printed or displayed onboard, and the crew acknowledges receipt through the same data link.

Context Anchor

Seen during IFR departure planning at airports and in aircraft that support electronic clearance delivery through ACARS.