
Dronexperts
Company

Lost between classes C0, C1, and C2? Discover our drone comparison table, overflight rules, and mandatory training to fly legally in 2026.
Since the harmonization of European drone regulations, it has become easy to feel lost. Between flight categories (Open, Specific) and drone classes (C0, C1, C2...), many remote pilots—from beginners to experts—no longer know which rules apply to their equipment.
Have you just bought a DJI Mini 4 Pro or a Mavic 3? Do you want to know if you need a license to pilot a drone weighing less than 250g?
At Dronexperts, we train professionals and enthusiasts daily. Here is our ultimate guide to decoding classes C0 to C6 and choosing the right training without the stress.
The majority of leisure flights and some simple professional missions take place in the Open Category. The principle is straightforward: the risk is considered low.
To fly in this category, three golden rules apply, regardless of your drone:
However, depending on the weight and class of your drone (C0 to C4), you are restricted in terms of where you can fly. This is where sub-categories come into play.
This is the most permissive category. It concerns very light drones (Class C0 and Class C1). You are allowed to fly near people and even overfly them (if unintentional and brief), but never over an assembly of people.
This category is for heavier drones (Class C3, C4). Here, the rule is strict: you must fly at least 150 meters away from any residential, commercial, or industrial areas and far from people.
To know exactly what you are allowed to do, refer to the CE class identification label on your drone's box.
| Drone Class | Weight / Features | Sub-category | Overflight Rules | Required Training | Examples |
|---|---|---|---|---|---|
| C0 | < 250g | A1 | Overflying people allowed (except assemblies). | None (User manual reading mandatory). | DJI Mini 2/3/4, Neo |
| C1 | < 900g | A1 | Overflying people allowed (briefly/unintentionally). | A1/A3 Theory Exam (Online via AlphaTango). | DJI Air 3, Mavic 3 Classic |
| C2 | < 4 kg | A2 | Flight up to 30m from people (or 5m in low-speed mode). | A1/A3 Exam + A2 Complementary Exam (CoA). | Mavic 3 Enterprise |
| C3 | < 25 kg | A3 | Flight far from people (150m from inhabited zones). | A1/A3 Theory Exam (Online via AlphaTango). | Heavy drones, Matrice 300/350 |
| C4 | < 25 kg (Models) | A3 | Flight far from people (150m from inhabited zones). | A1/A3 Theory Exam. | Classic aeromodels |
| C5 / C6 | STS Scenarios | Specific | Advanced professional flights (BVLOS or Urban). | STS Practical Training + CATS Theory. | STS-certified drones |
Dronexperts Tip: Be careful; the simple online exam on AlphaTango (A1/A3) is often insufficient for mastering aerial safety. It is a basic multiple-choice test that does not teach you how to fly.
Do you own a "legacy" drone (DJI Phantom 4, Mavic 2 Pro, Autel Evo II) purchased before the full application of European law? Don't panic; you can still fly, but you fall into the "legacy drone" category.
This is a major constraint for those who want to film in peri-urban areas. To regain that freedom, you will need to invest in a drone with C1 or C2 class marking.
This is a question we are often asked: "If the law doesn't force me to pass an exam for my DJI Mini (C0), why pay for training?"
The answer lies in one word: Responsibility.
Buying a drone is easy. Flying it without crashing, without losing GPS signal, or without infringing on a neighbor's privacy is much more complex. Here are 3 reasons to follow an introductory training course at Dronexperts, even for a small drone:
If your goal is to perform complex commercial services (urban flights, beyond visual line of sight for inspections), the Open category will not be enough.
You will need to aim for the Specific Category and use Class C5 or Class C6 drones. These classes are dedicated to European Standard Scenarios (STS-01 and STS-02). This requires more advanced theoretical training (CATS) and practical training validated by an approved center like ours.
Whether for leisure or to launch your business, don't let regulations spoil your flight pleasure.
We use cookies to optimize your experience, analyze our traffic, and personalize content. To learn more, see our privacy policy.