Permits and Cab Cards for Auto Transport: What Goes in the Truck

Every auto transport truck needs to carry a specific set of documents before it turns a wheel on a public road. In the US, a roadside inspection officer from any state can pull you over and ask for your operating authority, registration, cab card, insurance, and driver qualifications — and if anything is missing or expired, you are looking at out-of-service orders, fines, and a mark on your safety score that follows you for two years. In Canada, the rules are set provincially but enforced federally under the National Safety Code, and a Commercial Vehicle Operator's Registration (CVOR) or NSC certificate number must appear on the vehicle alongside the carrier's paperwork. Getting this right is not complicated, but it requires knowing exactly what belongs in the cab, in what form, and how to keep it current.

This guide covers the complete document set for auto transport operators in both the US and Canada: what each document is, where it comes from, how long it stays valid, and the practical steps to make sure your drivers are never caught short at a weigh station or border crossing.

US Operating Authority and Registration Documents

If you haul vehicles for hire across state lines in the United States, the Federal Motor Carrier Safety Administration (FMCSA) requires you to hold active interstate operating authority — typically an MC number for-hire carriers — and a USDOT number. Both must be registered and in good standing before dispatch. The FMCSA's Unified Registration System (URS) handles both; initial registration costs $300 for the operating authority application as of 2024.

What physically goes in the truck for federal compliance:

• Cab card (IRP registration): The International Registration Plan apportioned registration card for the specific truck. One card per power unit, renewed annually. It proves the truck is licensed to operate in all IRP member jurisdictions.
• USDOT number display: Must appear on both sides of the cab in at least 2-inch lettering — this is a marking requirement, not a paper document, but inspectors verify it matches your paperwork.
• Insurance certificate (Form MCS-90 endorsement): Auto haulers carrying non-exempt vehicles must carry minimum $750,000 in public liability coverage. The MCS-90 endorsement proves your policy meets federal minimums. Some brokers require $1,000,000 — confirm before bidding loads.
• Operating authority certificate: A printed copy of your active MC authority from FMCSA. Many carriers keep a printed SAFER snapshot or their authority letter; what matters is that the MC number is current and not revoked.
• Driver's Record of Duty Status (RODS) / ELD output: Hours of service records for the current day plus the prior 7 days.
• Driver qualification file documents: CDL, medical examiner's certificate (current), and the medical card itself (physical copy in-cab).

The Cab Card: What It Is and Why It Matters

The cab card is the single most-checked document at weigh stations. It is issued under the International Registration Plan (IRP) — the agreement between US states and Canadian provinces that allows one apportioned plate to cover an entire fleet of jurisdictions rather than buying separate registrations in every state or province you operate in.

Each cab card is vehicle-specific and lists the jurisdictions the truck is apportioned for, the gross vehicle weight, and the registration expiration date. If you add a new jurisdiction mid-year — for example, you start running loads into Quebec — you need a supplemental cab card update, not just a phone call to your base jurisdiction. Inspectors will cite you if the jurisdiction on the cab card does not match where you are operating.

Cab cards must be the original or a certified copy issued by your base jurisdiction. Photocopies are not accepted in most states. Some jurisdictions now issue electronic credentials, but confirm acceptance before relying on a PDF on a tablet — enforcement practice varies.

Annual IRP renewal fees depend on your fleet's apportioned mileage and the jurisdictions you file in. A single truck running primarily within Ontario and Quebec with some US crossings might pay $1,800–$3,500 CAD per year in combined IRP fees. A US truck running 20 states might pay $3,000–$6,000 USD depending on GVW and mileage allocation.

Canadian-Specific Requirements: CVOR, NSC, and Provincial Permits

Canada does not have a single federal carrier authority equivalent to the FMCSA MC number. Instead, carrier fitness is regulated provincially under the National Safety Code (NSC). Each province issues its own operating licence, and the CVOR (Commercial Vehicle Operator's Registration) in Ontario — or its equivalent in other provinces (Safety Fitness Certificate in BC, Operating Authority Certificate in Alberta) — must be carried in the vehicle.

What goes in the cab for Canadian operations

• CVOR certificate (Ontario) or provincial equivalent: Lists your NSC number, authorized vehicle and fleet size, and safety fitness status. Must be the current issued document — not a printout from your email.
• IRP cab card: Same as the US — required for any interprovincial or cross-border movement.
• IFTA licence and decals: Required for any carrier operating in two or more IFTA member jurisdictions. The licence goes in the cab; decals go on the truck. See our IFTA compliance guide for Canadian auto haulers for the full filing calendar and record-keeping requirements.
• Vehicle registration (ownership): Proof the truck is registered and the registration is current.
• Insurance pink slip: Canadian insurers issue a standard pink slip as proof of valid coverage. Some provinces accept digital copies; Ontario does not as of 2024 — physical copy required.
• Driver's licence and hours of service log: Electronic logging device output or paper log for the current cycle.
• CRA business number documentation: Not required in-cab but needed for customs crossings — carry your business number and proof of GST/HST registration when crossing into the US.

Cross-border movements

When a Canadian carrier crosses into the US — or a US carrier enters Canada — both sets of requirements stack. A Canadian truck entering the US needs its CVOR/NSC documentation plus a valid USDOT number if operating as a for-hire carrier under FMCSA jurisdiction. US carriers entering Canada need their NSC operating licence for the province(s) they are entering, typically obtained through the relevant provincial transport authority. Processing times for new NSC operating licences range from 2–6 weeks depending on the province; do not book cross-border loads until these are confirmed.

Oversize and Overweight Permits for Auto Haulers

Loaded auto transport trailers — especially 8- or 10-car stacks — frequently exceed standard legal dimensions in both height and length. Permit requirements vary by jurisdiction, but you should treat any loaded multi-car trailer as a potential oversize move until you have confirmed the dimensions against the specific route's state or provincial limits.

• Height: Legal limit in most US states is 13 feet 6 inches (4.15 m). Loaded stacker trailers routinely reach 14 feet. Overheight permits are required in every state where you exceed legal height — they are not transferable between states.
• Length: Most states allow 65–75 feet combined length; some Western states allow longer. Check before routing.
• Weight: Federal bridge formula limits apply on Interstate highways. A fully loaded 10-car hauler can approach 80,000 lbs — the federal gross weight limit — quickly. Overweight permits are issued per trip or annually by the state DOT; costs range from $15 to $150+ per state depending on GVW and route.
• Permit routing: Many oversize permits specify an exact route. Deviating from the permitted route — even to avoid traffic — can void the permit and expose you to a fine. Keep the permit document in the cab and follow the route exactly.

In Canada, oversize/overweight permits are issued by each province's transport ministry. Alberta and Saskatchewan have annual oversize permits that are cost-effective for carriers running regular routes; Ontario and Quebec typically require trip permits. Budget $50–$300 CAD per trip permit depending on the province and load dimensions.

Keeping Documents Current: Expiry Tracking and Common Failures

The most common reason drivers get placed out of service at inspections is not missing documents — it is expired documents that no one flagged. Medical cards expire annually (or every two years depending on health history). IRP cab cards expire at the end of the registration year. IFTA licences must be renewed by January 1 each year. Insurance certificates need to match your actual policy renewal date, which does not always align with registration renewal.

Manual expiry tracking — spreadsheets, calendar reminders, sticky notes on a filing cabinet — works until it doesn't. A single missed renewal can mean a driver gets turned around at a weigh station, a load misses its delivery window, and you owe the customer a rebooking fee. Spreadsheets do not send you a 30-day warning when a cab card is about to expire across a 12-truck fleet.

A practical expiry tracking system should cover, at minimum:

What Happens When Documents Are Missing or Expired

A Level 1 roadside inspection in the US covers driver and vehicle compliance together. If an inspector finds an expired cab card, you can expect a citation and potentially an out-of-service order until valid documentation is presented. Fines for operating without proper registration or authority range from $500 to $10,000 depending on the violation and jurisdiction. In Canada, driving without a valid CVOR or NSC certificate can result in vehicle impoundment in addition to fines.

Beyond the immediate fine, each violation adds to your FMCSA safety rating (US) or NSC carrier profile (Canada). Enough violations and your safety fitness designation drops from Satisfactory to Conditional — which affects your ability to win broker contracts, since most large brokers filter carrier searches by safety rating. Recovering a safety score takes 12–24 months of clean inspections; the opportunity cost far exceeds any individual fine.

If you have questions about what's required for your specific operating profile, the AutoHauler AI FAQ covers common compliance scenarios for both US and Canadian carriers, including cross-border documentation and new entrant requirements.

Building a Document Management System That Actually Works

The goal is simple: every truck should have every required document, every document should be current, and someone at the company should know 30–60 days in advance when anything is coming up for renewal. For a 1–3 truck operation, this is manageable with a shared folder and a reminder system. For a fleet of 8 or more trucks with multiple drivers, manual tracking becomes a liability.

AutoHauler AI's fleet management tools include document expiry tracking built directly into each vehicle and driver profile — so dispatchers see renewal alerts before they become roadside problems. Dispatch can confirm a truck's documentation status before assigning a load, and drivers can access current document copies from the driver app rather than hunting for paperwork in the cab. See how the compliance and dispatch features work together, or start a free trial to see it against your actual fleet size and routes.