Drone Registration Certificate Display Rules in the UK

What You Must Display and Where

After you register with the CAA and receive your Operator ID, you are legally required to display it on your drone. The Operator ID follows the format GBR-RP-xxxxx and is unique to you as the person or organisation responsible for the drone.

The label must be placed on the drone body itself. Placing it on the remote controller, carry bag, case, or packaging does not satisfy the legal requirement. The drone is the item that flies, and the ID must be physically attached to it.

The ID does not need to be externally visible during flight. It is acceptable to place it inside the battery compartment or on a surface that is only visible when the drone is accessed on the ground. However, the label must be accessible without tools — an inspector should be able to read it without needing a screwdriver or any other equipment to open the drone.

Label Requirements: Material and Legibility

The CAA requires that the Operator ID display is:

• Clearly legible: The text must be large enough to read easily. There is no specified minimum font size, but it should be readable at a glance
• Weather-resistant: The label must withstand exposure to rain, sun, and varying temperatures without fading or peeling
• Durable: It should remain intact and readable throughout the registration period

Several methods meet these requirements effectively:

• Printed adhesive label: A clear, weatherproof sticker is the most common approach. Many online printing services offer drone-specific labels
• Engraved plate: A small metal or plastic plate attached to the drone body. Extremely durable and professional-looking
• UV-resistant sticker: Purpose-made for outdoor use, these resist sun damage better than standard labels
• Permanent marker: While technically allowed, writing your ID directly on the drone body with a marker is not recommended. Ink fades over time, especially with UV exposure, and may become illegible long before your registration expires

Multiple Drones: One ID for All

If you own or are responsible for more than one drone, the same Operator ID goes on all of them. You do not need separate registrations for each individual drone. The Operator ID identifies you as the responsible person, not the specific aircraft.

This means that whether you have two hobby drones or ten commercial units, each one carries the same GBR-RP-xxxxx number. When you register, you pay a single £10.33 annual fee regardless of how many drones you operate.

If you transfer ownership of a drone to someone else, they must display their own Operator ID on it. You should remove your label before handing the drone over.

Carrying Your Flyer ID

While the Operator ID goes on the drone, the Flyer ID stays with you as the pilot. You must be able to produce it if asked by a police officer or CAA inspector.

Acceptable ways to carry your Flyer ID include:

• A digital copy on your phone (screenshot or the CAA portal open in your browser)
• A printed card or printout from your CAA account

There is no official physical Flyer ID card issued by the CAA. The digital version accessed through your account at register-drones.caa.co.uk is the primary format. Many pilots screenshot it for quick access.

Inspections and Enforcement

Police officers and CAA inspectors have the authority to request sight of both your Flyer ID and the Operator ID displayed on your drone. These checks can happen at any flying location — public parks, open fields, coastal areas, or any other site where you operate your drone.

If your drone does not display a valid Operator ID, you may face a fine of up to £1,000. This applies whether the ID is missing entirely, illegible due to wear, or displayed on the wrong item (such as the controller instead of the drone).

If you cannot produce your Flyer ID when requested, that is a separate offence. Keeping it readily accessible on your phone avoids this issue entirely.

Inspectors may also check whether the Operator ID displayed on your drone matches a valid, current registration. If your registration has expired — for example, if you failed to renew after the annual period — the ID on your drone is no longer valid even if the label is still physically present.