CVOR Number Placement on a Truck — Ontario Rules vs US
Regulation O.Reg 424/97 · Province of Ontario
§The Law
O.Reg 424/97 — Regulation O.Reg 424/97
“Ontario O.Reg 424/97 does not require exterior CVOR number display; the CVOR certificate is carried in the cab. US-bound carriers generally display USDOT markings under FMCSA 49 CFR 390.21.”
View official regulation text✓Plain English
Ontario does not require your CVOR number on the outside of the truck — keep the certificate in the cab (O.Reg 424/97). Most fleets still letter both cab doors for professional identification, and carriers crossing into the US generally display USDOT markings under FMCSA 49 CFR 390.21.
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Specific Requirements
Ontario: certificate carried in cab — no exterior display rule
Professional practice: both cab doors, matched size
US-bound: USDOT markings both sides (FMCSA 49 CFR 390.21)
Not required on trailer
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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
Ontario Highway Traffic Act — Commercial Vehicles
Ontario.ca · March 2026
The HTA governs all commercial vehicle requirements in Ontario including CVOR registration, vehicle markings, and weight limits.
MTO CVOR Overview — Commercial Vehicle Safety
Ontario Ministry of Transportation · March 2026
CVOR registration requirements, safety rating system, and compliance monitoring for Ontario commercial vehicle operators.
🎓 Expert & Industry Sources
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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Shop Trucking ComplianceOr call (289) 228-7021Regulation Quick Facts
- Regulation
- O.Reg 424/97
- Jurisdiction
- 🏛 Province of Ontario
- Category
- Commercial Trucking Law
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