Risk assessment methodology for operations in the Specific Category. It structures the assessment of ground and air risks and derives the necessary mitigation measures and safety objectives from this.

Official approval for a specific operation in the Specific Category, usually based on a risk analysis (e.g., SORA) and an operations manual/procedure package.

Formal declaration by the operator to the competent authority that a planned operation meets all the conditions of a standard scenario (STS). This allows the operation to start without individual approval (provided there are no additional national requirements).

European standard scenario for BVLOS operations over a controlled ground area in a sparsely populated area; different range conditions apply with/without an airspace observer. Typically requires a UAS with C6 class designation.

European standard scenario for VLOS operations over a controlled ground area, which may also be located in a populated area. Typically requires a UAS with C5 class designation.

Predefined operating scenario described throughout the EU in the Specific Category. If an operator fulfills all conditions, they can submit a declaration instead of applying for an individual operating permit.

UAS manufactured by an individual for personal use and not "placed on the market." Different/sometimes stricter operating conditions apply to such UAS in the EU (e.g., often Open A3 or Specific based on a risk approach).

UAS that were placed on the market without EU class marking (e.g., before the relevant transition periods). Operation is still possible in the Open category, but only under restricted conditions (depending on mass/mode of operation).

C0–C6 marking on the UAS, confirming that the product meets defined EU requirements for design/manufacturing and may be used in certain operating scenarios.

EU class rating for UAS intended for operation in accordance with STS-02 (Specific Category) and which meet additional technical requirements for this purpose.