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Standard Scenarios (STS) and PDRA: an easier path to operating in a specific category

Standard Scenarios (STS) and PDRA: an easier path to operating in a specific category

STS and PDRA

In previous parts of our series, we introduced the individual categories of drone operations and explained that some aerial operations no longer fall into the open category, but into the so-called specific traffic categoriesThis is intended for more complex or risky operations that require obtaining the appropriate authorization.

The good news is that not every operation in a specific category requires a lengthy individual risk assessment. European legislation offers two ways that can significantly simplify the process – standard scenarios (STS) a predefined risk assessment (PDRA).

Pre-approved scenarios (STS)

The simplest option is pre-approved scenarios (Standard Scenarios – STS). In the Czech Republic, we now have 2 pre-approved scenarios – STS-01 and STS-02.

STS-01 – VLOS in controlled space on the ground in a built-up environment

This scenario is intended for operation, for example:

  • in direct visual line of sight of the pilot (VLOS),
  • to the height 120 m above ground,
  • nad controlled land area, to which non-participating persons do not have access,
  • i v populated environment.

Typical uses include building inspections, mapping construction sites, technical inspections, or filming or photographing in urban environments.

STS-02 – BVLOS in a sparsely populated environment

This scenario allows, for example:

  • operation beyond visual line of sight (BVLOS),
  • to the height 120 m,
  • over controlled ground area,
  • v sparsely populated environment.

Typical uses include line inspection of lines, pipeline inspection, agriculture, extensive surveying work or infrastructure inspection.

These are predefined types of operations for which European legislation has set conditions under which operations can be considered sufficiently safe. If the operator meets all these conditions, he does not need to undergo an individual risk assessment for the operation in question.

Pre-approved scenarios so represent the easiest path to traffic in a specific categorybecause they are based on pre-verified security rules.

When is PDRA's turn?

However, not every planned operation can be classified under one of the pre-approved scenarios.

For a number of other typical operations, European rules have created so-called PDRA (Predefined Risk Assessment), i.e. a predefined risk assessment.

PDRA presents simplified method of risk assessmentFor certain types of operations, the risks have already been professionally assessed and the operator does not need to prepare his own comprehensive analysis. However, he must demonstrate that his planned operation meets all the conditions set out in the relevant predefined assessment.

Compared to individual assessment, this is an administratively simpler and faster procedure.

Which path to choose?

The choice between the standard scenario and PDRA is always depends on the nature of the planned operation.

If the operation exactly matches one of the standard scenarios, this is usually the simplest solution. However, if the conditions of the standard scenario are not met, it may still be possible to use one of the predefined PDRA risk assessments.

Only if the intended operation falls under neither the standard scenario nor any of the PDRAs does an individual risk assessment usually come into play according to SORA methodologies, generic authorization or LUC licensewhich we will introduce in the next parts.

záver

Both Standard Scenarios (STS) and Predefined Risk Assessments (PDRA) are tools aimed at facilitating operators in obtaining authorization to operate in a specific category.

Proper assessment of the planned operation can significantly shorten the time required to obtain authorization and at the same time reduce the administrative burden of the entire process. Therefore, it is It is advisable to evaluate during project preparation whether one of the standard scenarios or a predefined risk assessment can be used..

Do you need to assess which regime applies to your planned drone operation, or prepare documents to obtain a permit? We will be happy to help you.

Jan Vych

JUDr. Ing. Jan Vych, attorney and partner

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Law firm Vych and partners