Key information

  • Most drones over 250 g must display the operator registration number visibly.
  • Remote ID is mandatory for class C1 and above — transmits identification data in real time.
  • Legacy drones without built-in Remote ID may need an add-on module depending on class.
  • AACR is the registration authority in Romania — check current requirements on their official site.
  • Flying without required markings or Remote ID is a regulatory violation.

What this means for you

If you are not sure whether your drone needs Remote ID or specific markings, check the drone class (C0–C4) and the current AACR requirements. Compliance is straightforward once you know the class — but ignoring it carries legal risk. A hull sticker does not replace Remote ID where the law requires it.

To move from theory to practice, check if you can fly or use the airspace checker. If the zone requires it, generate the approval request.

Marking and Remote ID checklist

Walk through these steps before the first flight with a new drone or after changing the operator.

  1. Identify the drone class Look for the C0–C4 label on the drone or in the manual. The class drives many Remote ID and open-category obligations.
  2. Register the operator with AACR if required For most drones over 250 g, register the operator on the official AACR platform and keep the number handy.
  3. Stick the operator number on the drone The marking must be visible and readable. If you have several drones, each must be identified correctly.
  4. Verify Remote ID For classes where it is mandatory, confirm transmission works (built-in or module). Do not fly if Remote ID is broken and required.
  5. Still check airspace Correct marking does not give you the right to fly in CTR or over a NOTAM. After identification, check the map and the day’s restrictions.