Standard · European Union
ASD-STAN PrEN 4709-002 — Direct Remote ID for the EU
The European direct remote identification standard, harmonised with EASA rules and the C-class marking system.
Who must comply
ASD-STAN PrEN 4709-002 is the European direct remote identification (DRI) standard developed by the aerospace industry association, and it is the reference for the Direct Remote ID requirements that apply to drones sold in the EU under Delegated Regulation 2019/945. Drones carrying a C-class marking are expected to broadcast in line with it, which makes the standard central to any receiver deployed in EU airspace.
How the broadcast works
The broadcast approach deliberately aligns with the ASTM message set — Bluetooth and Wi-Fi carries, the same field families — with European-specific detail in how conformance is assessed. For a buyer this means a receiver that decodes ASTM broadcasts will generally also hear ASD-STAN transmissions; the practical differences sit in conformance paperwork, not on the air.
What it means for a receiver buyer
When comparing receivers for European sites, ask which standards the unit actually decodes and whether ASD-STAN support is full or partial. Multi-standard units state it; single-standard units often leave it unsaid.
Timeline
- 2019 — EASA Delegated Regulation 2019/945 introduces the C-class framework
- 2021+ — Direct Remote ID required for C-marked drones as classes enter force
- 2026+ — U-space services raise the value of reliable RID reception across EU airspace
Summaries reflect vendor documentation and public regulator material reviewed September 2026. Regulatory text governs — verify against the authority before relying on any date.