How to Start a Car Hauling Business: Rigs, CDL, Rules

From a pickup with a wedge trailer to a 9-car stinger: what each setup requires for licensing, authority, insurance and paperwork, and the federal length rules for auto transporters.

Car hauling is one of the few freight niches a one-truck operator can enter with a pickup, and also one where the jump to a full-size rig changes almost everything: license class, insurance, equipment cost and the rules on how long the vehicle can be. This guide covers the decisions that shape a car hauling business and the federal rules that apply to each setup.

Choosing the rig

Setup	Typical power unit	Capacity (varies by vehicle size)	License and registration picture
Two-car trailer, open or enclosed	3/4-ton or one-ton pickup	Usually 2 cars	Often a CMV (10,001 lb+ combined). CDL depends on trailer rating and GCWR.
Three-car wedge ("3-car")	One-ton dually or medium-duty truck	Usually 3 cars, sometimes 4 small cars	Trailers are often rated over 10,000 lb, so many combinations need a Class A CDL.
Enclosed multi-car trailer	Medium- or heavy-duty truck or tractor	Commonly 2–6 cars	Usually CDL Class A. Popular for high-value, classic and exotic cars.
Stinger-steered or high-mount 7–9 car rig	Class 8 tractor with headrack	Commonly 7–9 cars	Class A CDL, IFTA, IRP, Form 2290, and the full set of heavy-truck rules.

Count per load is a function of vehicle size and weight. Pickups and full-size SUVs take more deck length and weight than compact cars, so posted capacity is a best case. Load to axle ratings, not deck space.

Pickup and wedge operations

The appeal is a lower entry cost and the ability to take short dealer, auction and private-party moves. The weakness is margin per mile: fewer cars per trip means each load has to pay more per car. Check your truck's published GCWR and rear axle rating against a fully loaded trailer before you buy either piece. See pickup weight ratings.

Stinger and high-mount rigs

These carry the most cars per driver and dominate long-haul dealer and manufacturer work. They also require experience in loading sequence, ramp angles and securement that takes time to learn. Many drivers start with an established carrier before buying their own.

CDL thresholds by GCWR

Under 49 CFR 383.91, a combination is Group A (Class A CDL) when its gross combination weight rating or actual weight is 26,001 lb or more and the towed unit is rated or loaded over 10,000 lb. For a pickup-pulled car hauler, the federal GCWR is the greater of the manufacturer's GCWR or the sum of the truck's and trailer's GVWRs. A one-ton dually rated at 14,000 lb pulling a wedge rated at 15,000 lb or more is over the line on both tests. See GVWR vs GCWR for worked examples.

Authority, registration and paperwork

USDOT number and operating authority. Hauling other people's vehicles for pay across state lines is for-hire interstate transportation of property, so you need a USDOT number and an MC number. See how to get trucking authority.
Driver qualification and medical. If the combination is 10,001 lb or more, each driver needs a DOT medical card and a qualification file. See DOT medical card and driver qualification file.
IFTA, IRP and Form 2290. Over 26,000 lb interstate brings IFTA and apportioned plates. Form 2290 applies at 55,000 lb taxable gross weight, which most stinger rigs reach. See IFTA, IRP and Form 2290.

Bill of lading and vehicle condition report

For-hire carriers must issue a receipt or bill of lading for property they accept for interstate transport, listing the consignor, consignee, origin, destination and a description of the freight (49 CFR 373.101). In car hauling, the bill of lading is usually combined with a vehicle condition report, sometimes called an inspection report.

Record the VIN, year, make, model, color, mileage and keys received.
Mark every existing scratch, dent, chip and crack on a vehicle diagram at pickup, in daylight or good light, with the shipper or their agent present.
Take time-stamped photos of all sides, roof, wheels, interior and odometer.
Get a signature at pickup. At delivery, inspect again with the consignee before they sign, and note any new damage on the report rather than after the fact.

Claims in this niche are decided almost entirely by the pickup report. A vague report ("used, normal wear") leaves you defenseless against a damage claim.

Cargo insurance specifics

FMCSA requires public liability insurance ($750,000 for non-hazardous property at 10,001 lb GVWR and above) but no cargo insurance for general property carriers. In practice, shippers, dealers and load boards require cargo coverage, and the details matter more than the headline limit.

Per-vehicle and per-load limits. A policy can have a per-unit sublimit lower than the per-load limit. Make sure both cover the most valuable car you will carry.
Loading and unloading. Confirm damage during loading, unloading and ramp work is covered, not just damage in transit.
Driven vehicles. Some policies exclude damage while a customer's car is driven under its own power, even onto the trailer.
Unattended vehicle and theft conditions. Many policies set rules for parking a loaded trailer overnight.
Open vs enclosed. High-value and classic cars may need an enclosed trailer or a separate endorsement.

For how liability and cargo premiums are built, see truck insurance costs.

Length and height limits

Federal law treats automobile transporters as specialized equipment. On the National Network of highways, 23 CFR 658.13(e)(1) says states may not set an overall length limit below 65 feet for traditional auto transporters or 75 feet for stinger-steered auto transporters, with cargo overhang of at least 3 feet in front and 4 feet in the rear allowed on top of that. Retractable ramps used to reach the overhang do not count toward length but must be retracted when not supporting a vehicle.

The underlying statute was later amended. 49 U.S.C. 31111(b)(1)(G) now bars states from setting a length limit below 80 feet for a stinger-steered automobile transporter with a front overhang of less than 4 feet and a rear overhang of less than 6 feet. The statute also allows auto transporters to haul general freight on a backhaul, as long as they meet the weight limits for a tractor-semitrailer.

There is no federal height limit. Each state sets its own, the limits differ from state to state, and a loaded high-mount rig can be close to them, so check every state on the route as well as posted clearances. Width is federally capped at 102 inches on the National Network. Off the National Network, state rules apply. See weight limits.

What drives revenue

Cars per load and deadhead. Rates are usually quoted per car, so filling every slot on both directions matters more than the posted rate on any one car.
Route density. Lanes between auction hubs, ports and large metro areas reload faster than rural deliveries.
Vehicle type. Inoperable vehicles, oversized pickups and enclosed transport usually price higher because they take more time, space or equipment.
Customer mix. Dealer and auction work offers volume. Private-party moves pay more per car but take more coordination.
Claims history. A clean damage record keeps insurance affordable and keeps broker and dealer accounts.

Common mistakes

Buying a wedge trailer rated over 10,000 lb without a Class A CDL.
Loading to deck space instead of axle and tire ratings.
Rushing the pickup inspection or skipping photos.
Assuming cargo insurance covers loading damage, theft from an unattended trailer or driven vehicles.
Running a high-mount rig through states with lower height limits without checking the route.

Questions

Can I haul cars with a pickup without a CDL?

Yes, if the combination stays under the Class A test: either the combined rating is under 26,001 lb, or the trailer is rated and loaded at 10,000 lb or less. Many two-car trailers fit this; many three-car wedges do not.

Do I need operating authority to haul cars for dealers in other states?

Yes. Transporting vehicles owned by others for pay across state lines is for-hire interstate transportation of property. You need a USDOT number, an MC number and an insurance filing.

Is cargo insurance required by FMCSA for car haulers?

No. FMCSA requires cargo insurance only for household goods carriers. Brokers, dealers and shippers almost always require it by contract.

What is the federal length limit for a stinger-steered car hauler?

The eCFR text of 23 CFR 658.13 sets a 75-foot minimum that states must allow, with overhang on top. The statute, 49 U.S.C. 31111(b)(1)(G), now sets that minimum at 80 feet with up to 4 feet of front and 6 feet of rear overhang. These apply on the National Network; check state rules off it.

Starting a Car Hauling Business