Drone Label Size Requirements — 25mm Minimum
Canadian Aviation Regulations — RPAS Registration · Federal — Canada
§The Law
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.”
View official regulation text✓Plain English
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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Specific Requirements
25mm (1") minimum character height
Legible without magnification
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📚Sources & Authority
Every claim on this page is backed by official government legislation and verified industry sources. Last verified: March 2026.
🏛 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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Confirm the current rule before relying on a marking
Our guides are a starting point for locating government sources connected to Canadian Aviation Regulations (SOR/2019-11) markings. Requirements can depend on jurisdiction, vehicle or site details, and the date you act.
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