---
title: "SERA.15010 Transfer of CPDLC — ANNEX: Rules of the Air, SERA · Avioverse"
description: "When CPDLC is transferred, the transfer of voice communication and CPDLC shall commence concurrently."
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-15/sera-15010"
---

# SERA.15010 Transfer of CPDLC

ANNEX: Rules of the Air · Regulation (EU) No 923/2012 · EAR revision 26 Aug 2025

IR Implementing rule

## SERA.15010 Transfer of CPDLC

(a) When CPDLC is transferred, the transfer of voice communication and CPDLC shall commence concurrently.

(b) When an [aircraft](https://avioverse.aero/glossary/easa/aircraft) is transferred from an [air traffic control unit](https://avioverse.aero/glossary/easa/air-traffic-control-unit) where CPDLC is available to an air traffic control unit where CPDLC is not available, the termination of CPDLC shall commence concurrently with the transfer of voice communication.

(c) The [air traffic](https://avioverse.aero/glossary/easa/air-traffic) controller shall be informed when attempting a transfer of CPDLC resulting in a change in data authority if there are data link messages for which a closure response has not been received. When the air traffic controller decides to transfer the aircraft without receiving pilot responses to the uplink message(s) outstanding, the air traffic controller shall normally revert to voice communication to clarify any ambiguity associated with the uplink message(s) outstanding.

IR · SERA.15010 — Regulation (EU) No 923/2012 · Regulation (EU) 2023/1772 · SERA Easy Access Rules · EAR revision 26 Aug 2025

[All rules in SECTION 15 Controller-pilot data link communication (CPDLC) procedures](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-15)

Consolidated from the EASA Easy Access Rules (revision 26 Aug 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.