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Aviation regulation

EU Regulations 2019/947 and 2019/945, the Open / Specific / Certified categories and Latvian national rules.

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A1/A3 vs A2 vs STS

Which qualification fits your drone and the way you fly.

A1/A3A2STS
CategoryOpenOpenSpecific
Who it's forBeginners and most consumer drones — hobby flying.Flying closer to people in built-up areas.Standardised advanced operations, including beyond visual line of sight.
Distance from peopleA1: C0 and sub-250 g drones may overfly uninvolved people, never crowds; C1 should avoid overflying uninvolved people. A3: at least 150 m from residential, commercial, industrial and recreational areas.At least 30 m horizontally — down to 5 m in low-speed mode.Set by the scenario's operational volume (STS-01 controlled ground area, STS-02 beyond visual line of sight).
Drone classA1: C0/C1 and legacy <250 g · A3: C2/C3/C4 and legacy/private-built <25 kgC2C5 (STS-01) · C6 (STS-02)
ExamOnline theory — free, at e.caa.gov.lv.In-person theory (€15) plus practical self-study.In-person theory (€20) plus practical accreditation and an operator declaration.

Sources: Reg (EU) 2019/947, EASA Easy Access Rules for UAS, CAA Latvia (droni.caa.gov.lv).