Drone Class UK2 Rules — UK-Specific Marking Guide (2026)

What Is the UK2 Class Marking?

The UK2 class is part of the CAA’s independent drone classification system created after the United Kingdom’s departure from the European Union. Where EASA assigns the C2 label to drones under 4 kg intended for A2 sub-category operations, the UK CAA assigns the UK2 mark under its own regulatory framework.

A UK2-marked drone has been assessed against UK-specific technical standards covering maximum kinetic energy on impact, low-speed mode functionality, noise emissions, electronic identification capability and construction requirements. The legal basis for the UK2 marking sits within the Air Navigation (Amendment) Order and associated statutory instruments.

The UK2 class is significant because it opens access to the A2 sub-category — the only part of the Open Category that permits flight close to uninvolved people with a drone weighing more than 900 g. Without the UK2 or C2 marking, a drone in the 900 g to 4 kg range is limited to the more restrictive A3 sub-category.

UK2 Operating Rules — Open Category A2

The A2 sub-category offers a middle ground between A1 (close to people with light drones) and A3 (far from people with any drone). The operating conditions for a UK2-marked drone are:

• Minimum distance from uninvolved people: 30 m in normal flight mode. This reduces to 5 m if the drone is operating in a defined low-speed mode where maximum speed is limited and the pilot has assessed the area.
• Assemblies of people: Flight over assemblies of people is prohibited in A2, just as in A1.
• A2 CofC required: The remote pilot must hold an A2 Certificate of Competency. This is a separate qualification beyond the basic Flyer ID, requiring additional training and a supervised practical assessment.
• Maximum altitude: 120 m (400 ft) above the closest point of the earth’s surface.
• Visual line of sight: Mandatory at all times.
• Flyer ID and Operator ID: Both required. The Flyer ID is a prerequisite for the A2 CofC.

The A2 CofC — What It Takes

The A2 Certificate of Competency is the key requirement that separates UK2 operations from simpler A1 or A3 flying. To obtain the A2 CofC, a pilot must:

• Already hold a valid Flyer ID (the free online CAA theory test).
• Complete additional theoretical training covering meteorology, drone performance, technical risk mitigation and operational procedures specific to A2 flying.
• Pass an additional online examination administered by the CAA or a CAA-recognised training provider.
• Undertake a self-declared practical training programme, demonstrating competence in flying the specific drone type to be used in A2 operations.

The A2 CofC is valid for five years from the date of issue. It is a personal qualification attached to the remote pilot, not to the drone.

Low-Speed Mode — The 5-Metre Rule

A distinctive feature of UK2 (and C2) class drones is the low-speed mode. This is a manufacturer-defined operational mode that restricts the drone’s maximum flight speed, limiting the kinetic energy it would impart on impact. When the drone is operating in low-speed mode, the minimum separation distance from uninvolved people drops from 30 m to 5 m.

The low-speed mode must be a defined function of the drone — it is not simply a matter of the pilot choosing to fly slowly. The manufacturer must specify the maximum speed in low-speed mode in the drone’s technical documentation, and the drone must enforce this limit through its flight control system.

The pilot must make a judgement about whether the reduced separation distance is appropriate for the specific environment and conditions. The 5 m distance is a minimum, not a target. In windy conditions, near obstacles or in crowded environments, maintaining a greater separation distance is a matter of prudent airmanship.

UK2 vs EASA C2 — Regulatory Differences

The UK2 and EASA C2 classes share the same 4 kg weight ceiling, the same A2 sub-category placement and the same low-speed mode concept. The key differences are administrative:

• Assessment authority: EASA C2 marking requires assessment by an EU notified body. UK2 marking requires assessment by the CAA or a CAA-approved body.
• Legal framework: C2 operates under EU Regulation 2019/945. UK2 operates under the Air Navigation (Amendment) Order.
• A2 CofC equivalence: A2 CofC qualifications issued by EASA member states are not automatically recognised in the UK. Pilots trained under an EU A2 CofC programme may need to obtain a UK-issued A2 CofC to operate in UK airspace. The CAA has published guidance on conversion arrangements.
• No mutual recognition: There is no agreement between the UK and EU for mutual recognition of drone class marks. Manufacturers must pursue separate authorisations for each market.

Transition Period Reality

As of 2026, the UK2 mark remains rare on consumer and prosumer drones. Models such as the DJI Mavic 3 series, which in some configurations carry an EASA C2 label, do not typically carry a separate UK2 mark. The CAA accepts EASA C2 markings as equivalent to UK2 during the transition period, granting the same A2 operational privileges.

Drones in the 900 g to 4 kg range that carry no class marking are classified as legacy aircraft. These may only be flown in the A3 sub-category (150 m from residential, commercial, industrial and recreational areas), regardless of whether the pilot holds an A2 CofC. The class marking on the drone — not just the pilot’s qualification — is what unlocks A2 access.

Practical Guidance for UK2 Pilots

• Verify your drone’s class marking. Look on the drone body and in the manufacturer’s documentation for UK2 or C2 labels.
• Obtain your A2 CofC before attempting A2 operations. Flying a UK2 drone in A2 without the CofC is an offence.
• Familiarise yourself with your drone’s low-speed mode and how to activate it. Not all drones with the C2 mark implement low-speed mode in the same way.
• Plan your flight to maintain appropriate separation from uninvolved people, considering conditions on the day.
• Night flying requires a green flashing light visible from the ground.

Penalties

Operating a UK2 drone in A2 without holding an A2 CofC, or operating a non-class-marked drone in A2, carries fines of up to £2,500. More serious breaches, including endangering other aircraft or persons, can result in criminal prosecution under the Air Navigation Order 2016.