STS exam
STS-01 vs STS-02: which do you need?
STS standard scenarios pre-define risk mitigations for common commercial flights. STS-01 and STS-02 cover different operational envelopes.
Contents
STS-01 overview
Typically covers VLOS operations in controlled ground areas with defined separation from uninvolved people.
STS-02 overview
Addresses flights near people with additional mitigations — common for event and inspection work within limits.
How to choose
- Match the STS to your actual operation — do not pick by exam convenience
- Both require STS theoretical knowledge and operational declaration
- Complex BVLOS still needs Specific category authorisation
STS exam preparation
60 questions, 60 minutes, 75% pass. Train with full timed mocks on A2STS before booking your NAA test.
Authority & sources
A2STS Editorial · Reviewed by: EASA UAS syllabus aligned