Inspector's Reference Toolkit
Quick-reference charts for every Canadian compliance marking regulation. Bookmark this page for fieldwork — no login required, always current.
When a business is cited, they need compliant replacements fast. Send them here — same-day production, Compliance Certificate included with every order.
Quick Reference — Marking Requirements by Type
Minimum requirements only. See official regulations for full compliance.
Commercial Truck (Ontario)
O.Reg 424/97 (HTA)
| Marking Required | Minimum Size | Placement |
|---|---|---|
| CVOR Number | 50mm (2") min | Both sides of power unit |
| Operator Name | Legible | Both sides of cab |
| GVW/GCW Rating | Visible | Both sides of cab |
| USDOT (cross-border) | 50mm (2") min | Both sides |
Pleasure Craft / Small Vessel
SOR/2010-91 (TC SVR)
| Marking Required | Minimum Size | Placement |
|---|---|---|
| PCL Number | 75mm (3") min | Both sides of bow, above waterline |
| Colour Contrast | Required | Contrasting to hull colour |
| Vessel Name | Visible | Stern (if registered vessel) |
Aircraft
CARs Standard 222
| Marking Required | Minimum Size | Placement |
|---|---|---|
| Registration Mark | 30cm (12") min | Fuselage + wing underside |
| Nationality Mark | Required | "C-" prefix for Canadian aircraft |
| Colour Contrast | Required | Must contrast with background |
RPAS / Drone
SOR/2019-11
| Marking Required | Minimum Size | Placement |
|---|---|---|
| Registration Number | 25mm (1") min | Exterior, clearly visible |
| Durability | Required | Must be permanently affixed |
Occupancy Load (Fire Code)
O.Reg 213/07, s.2.5.3.7
| Marking Required | Minimum Size | Placement |
|---|---|---|
| Sign Required | All assembly occupancies | Permanently posted |
| Content | "Occupant Load: [N] persons" | Conspicuous location |
| Font Size | Legible at typical distance | As per OBC accessibility |
AODA Signage (Ontario)
O.Reg 191/11 (IASR)
| Marking Required | Minimum Size | Placement |
|---|---|---|
| Tactile Characters | Embossed/raised | Room ID signs on latch side |
| Braille | Grade 2 Braille | Below tactile characters |
| Contrast | 70% min luminance contrast | Characters to background |
| Mounting Height | 1500mm (59") centreline | From finished floor |
Regulation Deep-Dives
CVOR Size — O.Reg 424/97
Full legal text + plain English →
MarinePCL Size — SOR/2010-91
Full legal text + plain English →
AviationCARs 222 — Aircraft Marks
Full legal text + plain English →
Fire CodeOccupancy Load — O.Reg 213/07
Full legal text + plain English →
AODAAODA Signage — O.Reg 191/11
Full legal text + plain English →
AviationDrone Marking — SOR/2019-11
Full legal text + plain English →
Citing a Business?
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