Your Flyer ID Does Not Go on the Drone. Your Operator ID Does
Quick Answer
A Flyer ID proves that the person flying has passed the CAA theory test. An Operator ID identifies the adult or organisation responsible for the aircraft and is the number placed on it. A separate Remote ID may need entering into compatible aircraft. The rules turn on weight, camera fit and class mark.
Flyer ID vs Operator ID: The Difference
The shortest answer is pilot versus responsibility. The Flyer ID belongs to the person at the controls; the Operator ID belongs to whoever manages and maintains the aircraft. You can fly somebody else’s drone using your own Flyer ID while it remains labelled with its operator’s ID.
| Question | Flyer ID | Operator ID |
|---|---|---|
| What does it show? | You passed the CAA theory test | You are responsible for the aircraft |
| Minimum age | No minimum; under-13s test with a parent or guardian | 18 |
| Cost | Free | £12.34 |
| Validity | 5 years | 1 year |
| Goes on the aircraft? | No | Yes |
| Covers several aircraft? | It belongs to one flyer | One ID covers every aircraft managed by that operator |
We would take the free Flyer ID test even below the registration threshold. Flight rules still apply, and the test checks your understanding against the current Drone Code.
Use This Registration Decision Table
| Aircraft | Flyer ID | Operator ID |
|---|---|---|
| 250g to under 25kg, or UK1 to UK4 class | Required | Required |
| 100g to under 250g with a camera, including UK0 | Required | Required |
| 100g to under 250g without a camera | Required | Optional |
| Below 100g, with or without a camera | Recommended, not required | Optional |
The scale matters more than the phrase “camera drone”. Our Nanofly20 Analog listing specifies 33g and the Nanofly20 Walksnail 42.8g. Both have cameras yet sit below 100g, so neither ID is required. Weigh a self-built quad ready to fly, including its battery and camera; “sub-250g” does not answer whether it crosses 100g.
Operator ID Is Not Remote ID
Do not enter the printed Operator ID where an aircraft asks for Remote ID. The CAA provides registered operators with a separate, case-sensitive Remote ID containing a private three-character key. Keep that key off the airframe and do not share it.
| Aircraft or operation | Remote ID required |
|---|---|
| UK1, UK2 or UK3 class aircraft | From 1 January 2026 |
| UK0 at 100g or more with a camera; UK4; legacy or privately built aircraft at 100g or more with a camera | From 1 January 2028 |
| UK5 or UK6 in the Specific category | From 1 January 2026 |
Follow the manufacturer’s setup instructions and keep firmware current. The CAA’s Remote ID guidance gives the current deadlines.
One Operator ID for Several Drones
If you manage several aircraft, put the same Operator ID on every one that requires it. Do not use your Flyer ID or buy a different Operator ID per drone. The label belongs on the main body, in block capitals taller than 3mm, secure against damage and visible externally or inside a compartment that opens without a tool.
Children, Parents and Shared Aircraft
A child flying an aircraft that requires a Flyer ID needs their own. Under-13s test with a parent or guardian, while under-12s fly under supervision from someone aged 16 or over. If children aged 11 and 15 share a 500g drone, both need Flyer IDs; an adult holds the Operator ID. The adult needs no Flyer ID if they never fly.
How to Get the IDs
Check the class mark, ready-to-fly weight and camera first, then use the CAA registration service. New models placed on the UK market from 1 January 2026 need a UK class mark, while European C marks can be treated as corresponding UK marks until 31 December 2027. Legacy aircraft can still be flown under the applicable weight rules.
Registration is not permission to fly anywhere. Read our UK drone laws guide, or browse our beginner FPV kits after checking flight-ready weight.
FAQ
Q: Which best describes the difference between a Flyer ID and an Operator ID?
A: A Flyer ID proves the pilot passed the CAA theory test. An Operator ID identifies the adult or organisation responsible for managing, maintaining and labelling the aircraft.
Q: What must I do if I am responsible for several drones?
A: Label every aircraft that requires an Operator ID with the same Operator ID. You do not register each aircraft separately.
Q: Which ID goes on the drone?
A: The Operator ID. Never label an aircraft with your Flyer ID or the private part of your Remote ID.
Q: Does a camera drone below 100g need registration?
A: No. Neither ID is required below 100g, even with a camera. The CAA recommends the free Flyer ID test, and all applicable flight rules still apply.