Affixing UAS Operator Number to Drones

Verified from official sources
Version 1Effective -Verified 25 August 2026

In plain language

You must label your drone with your official operator number (the part starting with CHE), but do not write the last three secret letters on the drone.

Requirement as structured

Operators must affix the first part of their UAS operator number (the 'CHE' prefix followed by 13 characters) so that it is clearly visible on the drone, while keeping the final three security characters hidden.

Original regulatory text

Affix your personal UAS operator number to your drone so that it is clearly visible. The actual operator number comprises 'CHE' followed by 13 lower case letters and numbers. This part must be clearly visible on the drone. These last three letters should not appear on the drone.