Law & zones

The 250 g rule

The 250 g threshold is the most common beginner and exam question.

A2STS editorial11 min read

Contents

The 250 g threshold explained

EASA regulations set 250 g as the key boundary: aircraft with a Maximum Take-Off Mass (MTOM) of ≥250 g require operator registration with your NAA and A1/A3 competency, regardless of whether use is recreational or commercial.

MTOM is used as stated in the manufacturer's documentation. Even if the drone weighs less in practice, the official MTOM determines whether registration is required.

Cameras and the 250 g exception

Drones under 250 g that carry a photo or video camera may still trigger registration requirements depending on C0 class rules and national transpositions. In some EU member states the camera rule removes the sub-250g exemption.

In Lithuania, check TKA guidance at utm.ans.lt: a gimbal-stabilised or optically-zoomed camera can change the aircraft classification even below 250 g. When in doubt, register.

C0 class and exemptions

C0 covers drones up to 250 g MTOM. Most Open-category obligations do not apply: no operator registration, no A1/A3 certificate — provided the aircraft has no camera and is not classified as a toy.

C0 aircraft still must respect geo-zones, the 120 m AGL ceiling and airspace rules. Exemption from registration does not mean exemption from safety obligations.

Registering with your NAA

Operator registration in Lithuania is done via utm.ans.lt. You receive a unique operator ID that must be marked on each aircraft. Registration is valid for 3 years and then renewed.

You register as an operator, not per aircraft — one registration covers your entire fleet. For individual hobbyists the registration process is straightforward and the fee is minimal.

Frequently asked questions

Does a 249 g drone need registration?
If the official MTOM is below 250 g and there is no camera, registration is generally not required under C0 rules. However, verify with your NAA — some member states have additional national requirements.
Where do I find my drone's MTOM?
MTOM is in the manufacturer's documentation or official product specification. If unavailable, weigh the drone with all components — battery, propellers and any payload — to estimate maximum flight mass.

Authority & sources

A2STS Editorial · Reviewed by: EASA UAS syllabus aligned