Compliance with Instructions Sent via CFMS Mobile App

Verified from official sources
250Version 1Effective -Verified 5 October 2026

In plain language

You must follow any instructions or directions sent to you by the aviation authority through the CFMS mobile app while flying.

Requirement as structured

A UA pilot flying an unmanned aircraft operated under the authority of a UA operator permit must, at all times when flying it, comply with every instruction given by the Authority to the UA pilot through the designated mobile application.

Original regulatory text

(2) A UA pilot flying an unmanned aircraft operated under the authority of a UA operator permit must, at all times when flying the unmanned aircraft — (a) have — (i) on his or her person, a mobile device on which the designated mobile application is installed and is in active use; or (ii) in his or her presence another individual who has, on that individual’s person, a mobile device on which the designated mobile application is installed and is in active use; and (b) comply with every instruction given by the Authority to the UA pilot through the designated mobile application mentioned in sub‑paragraph (a).