Drone Label Size Requirements — 25mm Minimum
Canadian Aviation Regulations — RPAS Registration · Federal — Canada
§Source summary
Canadian Aviation Regulations (SOR/2019-11) — Canadian Aviation Regulations — RPAS Registration
The registration number on an RPAS should be displayed in characters at least 25 millimetres in height to ensure it is readable by inspectors.
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Your drone registration number should be at least 25mm (about 1 inch) tall. On small drones, this is a challenge — use a purpose-made label.
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25mm (1") minimum character height
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📚Sources & Authority
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🏛 Official Government Sources
Canadian Aviation Regulations (CARs) Part II
Justice Laws Canada · March 2026
CARs Part II covers aircraft identification and marking requirements including registration marks, sizing, and placement for Canadian-registered aircraft.
Transport Canada — Aircraft Registration
Transport Canada · March 2026
Official aircraft registration portal. Covers how to register, marking requirements, and the C- prefix system for Canadian aircraft.
RPAS (Drone) Registration — Transport Canada
Transport Canada · March 2026
Drone registration requirements for RPAS between 250g and 25kg. Registration number should be marked on the drone and visible at all times.
All sources are official government publications or recognized industry authorities. Links verified March 2026. If you find a broken link, let us know.
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- 🇨🇦 Federal — Canada
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