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Standard scenarios (STS)

Standard scenarios are intended for operators who wish to conduct drone operations with a moderate and well-defined level of risk, for which the operational conditions are already established. By meeting strict technical and operational requirements, operators can fly their drones more easily. Currently, two standard scenarios are available.

The STS-01 standard scenario is used for flights up to 120 meters above ground level in visual line of sight (VLOS). The flight takes place over a controlled area, i.e., only persons involved in the flight may be present in this area on the ground, and may take place over populated environment (> 500ppl/km2).  The drones used must bear a C5 class identification label (or C3 with a C5 accessory kit).

The STS-02 standard scenario is used for flights beyond the visual line of sight between the pilot and the UAS below 120 meters above ground level. The flight takes place over a controlled ground area, i.e., only people involved in the flight may be present in this area on the ground, in a sparsely populated environment (< 500ppl/km2).  The drones used must bear a C6 class identification label.

Mandatory Declaration for Operators

As an UAS operator, you must submit an operational declaration to FOCA before operating drones under the standard scenarios. If you are only a remote pilot operating on behalf of an operator, you are not required to submit a declaration. For further information on the distinction between operator and remote pilot, please refer to the section “Operator and Remote Pilot: What’s the Difference?” below.

Determining Population Density

To identify the population density applicable to the operational area, use the platform https://map.geo.admin.ch and activate the “SORA Ground Risk” basemap:

  • A sparsely populated area corresponds to a population density of ≤ 500 persons/km²
  • A populated area corresponds to a population density of > 500 persons/km²

Steps for remote pilot STS qualification

Requirements for STS operators

Before being authorized to operate C5 or C6 drones under the standard scenarios, operators must fulfil several requirements.

STS cross-border operations

Operator and remote pilot: what's the difference?

It is essential to distinguish between the roles of “operator” and “remote pilot”. The operator refers to any person or organisation that owns or leases one or more registered drones. The remote pilot is the person who actually flies the drone, and may not necessarily own or lease it. You can be both an operator and a remote pilot if you own or lease a drone and also fly it yourself. All combinations are possible. An operator may choose not to be a remote pilot but will still be responsible for the drone(s) and their use. For instance, an operator could manage a fleet of drones on behalf of a small company and employ one or more remote pilots. Conversely, a person can be only a remote pilot without owning any drone, and therefore not be considered an operator. The responsibilities differ depending on the role. For more information, please refer to the EASA page Drone operators & pilots.

Further information

Federal Office of Civil Aviation FOCA

Unmanned Aircraft Systems UAS