Drone Class C2 UK Rules

What Is a Class C2 Drone?

Class C2 is the mid-range EASA drone weight category, covering drones with a maximum take-off mass (MTOM) below 4 kilograms. This class includes many professional-grade platforms used for commercial photography, surveying, mapping, and industrial inspections. The DJI Mavic 3 Pro, for instance, falls within the C2 weight range when fitted with standard accessories.

C2 drones are assigned to the Open A2 subcategory — a step up in regulatory complexity from the A1 subcategory used by C0 and C1 drones. The A2 subcategory was specifically designed to allow heavier drones to operate closer to people than the A3 subcategory permits, provided the pilot holds the appropriate qualification.

The A2 Certificate of Competency (A2 CofC)

The A2 CofC is the mandatory qualification for flying a C2 drone in the A2 subcategory. Obtaining it involves two steps:

1. Complete the Flyer ID online test: This is the same free CAA test required for C0 and C1 drones. It covers fundamental airspace rules, privacy law, and safe operating practices.
2. Pass the A2 CofC examination: This is a more detailed proctored exam covering meteorology, drone performance, technical risk mitigation, and the specific operational limitations of the A2 subcategory. You must also complete a self-declared practical training programme before sitting the exam.

The A2 CofC is issued by a CAA-recognised entity and must be renewed periodically. Without it, a C2 drone can only be flown under the more restrictive A3 subcategory rules — 150 metres from residential, commercial, industrial, and recreational areas.

Distance Rules — 30 Metres and 5 Metres

The defining feature of C2 operations in the A2 subcategory is the graduated distance rule:

• Standard mode — 30 metres: You must maintain a horizontal distance of at least 30 metres from any uninvolved person during normal flight operations.
• Low-speed mode — 5 metres: If your drone has a manufacturer-defined low-speed mode and you activate it, the minimum distance from uninvolved people drops to 5 metres. Low-speed mode limits the drone's maximum velocity to reduce kinetic energy on potential impact.
• Never over people: Even in low-speed mode, you must not fly directly over uninvolved people. The 5-metre rule applies to horizontal distance only.

These distance rules make the A2 subcategory practical for work in semi-urban environments — close enough to capture useful data, but with defined safety buffers.

Where Can You Fly a C2 Drone?

• Urban and suburban areas: Unlike A3, the A2 subcategory allows flight near people and built-up areas, subject to the distance rules above.
• Not over assemblies: Organised gatherings remain off-limits.
• Maximum altitude: 120 metres (400 feet) above ground level.
• Visual line of sight: You must maintain direct, unaided visual contact with the drone at all times.
• Flight Restriction Zones: FRZs around aerodromes require CAA authorisation to enter.

Registration and Ongoing Obligations

• Operator registration: Mandatory. Annual fee of £10.33 via the CAA drone registration service.
• Operator ID display: Must be visible on the drone.
• Insurance: While not legally required for Open category recreational flights, commercial operators should strongly consider third-party liability insurance. Many professional clients require proof of insurance before commissioning drone work.
• Logbook: Maintaining a flight log is recommended best practice, recording date, location, duration, and any incidents.

EASA C2 Mark in the UK — What Happens After Transition?

The C2 mark is an EASA classification. The UK CAA currently accepts it during the transitional period, granting the same privileges as a UK2-marked drone. Once the transition ends, drones without a UK mark will need to operate under legacy or transitional provisions, or will not be recognised at all.

If you are investing in a C2 drone for professional use, confirm whether the manufacturer plans to obtain UK-specific marking in addition to the EASA mark. This will protect your operational permissions beyond the transitional period.

Is Class C2 Right for You?

C2 is the professional workhorse class. It suits commercial operators who need to fly heavier, more capable platforms in areas where people are present — construction sites, urban surveys, event coverage (not over the crowd), and property inspections. The A2 CofC requirement adds a training investment, but it opens up operational environments that C3 and C4 drones cannot legally access.

If you do not need to fly near people and can maintain 150 metres from populated areas, a C3 or C4 drone under A3 rules may be simpler. But for versatility in mixed environments, C2 with the A2 CofC is the standard professional choice.