About 30 states allow triple towing, meaning one motorized vehicle pulling two separate trailers as a three-unit combination. The practice is legal across most of the West and Midwest, permitted in a handful of Southern states, and banned almost everywhere east of the Mississippi. Every state that allows it attaches its own conditions on length, weight, hitch type, brakes, and licensing, so a rig that’s legal at home may be illegal two states away.
Where Triple Towing Is Legal
The states that permit non-commercial drivers to pull two trailers behind one power unit are:
- West: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming
- Midwest: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, Oklahoma, South Dakota, Wisconsin
- South: Arkansas, Kentucky, Louisiana, Mississippi, Tennessee, Texas
- East: Maryland
Several of these come with caveats that matter before you hook up.
California prohibits any passenger vehicle from towing more than one trailer regardless of weight, and requires a Commercial Class A license with the proper endorsement for pickups and RVs pulling two trailers. That is a far higher bar than most recreational drivers expect.
Minnesota restricts triple towing to specific combinations, generally requiring the lead trailer to be a fifth wheel and the second to be a smaller unit like a boat, ATV, or snowmobile trailer. Wisconsin requires a special permit before you can legally operate a triple-tow setup on public roads.
Maryland is the only eastern state on permissive lists, but its statutes are ambiguous for non-commercial drivers. Maryland law caps noncommercial vehicle-and-travel-trailer combinations at 65 feet and contains a general prohibition on operating in combination with more than one other vehicle, with exceptions that primarily cover commercial truck tractor configurations. Contact Maryland’s Motor Vehicle Administration before assuming you’re covered.
States That Prohibit Triple Towing
Twenty states ban recreational triple towing outright. If you’re caught running a three-unit combination in any of them, expect a citation and an order to disconnect the second trailer before continuing:
- Alabama, Connecticut, Delaware, Florida, Georgia, Hawaii, Maine, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, South Carolina, Vermont, Virginia, Washington, West Virginia
Washington state law explicitly makes it unlawful to operate any combination of more than two vehicles on public highways. Virginia allows an exception only under a special permit from the Commissioner of Highways, which is aimed at commercial operations rather than recreational travelers. Oregon’s prohibition is similarly strict, though a narrow exception exists for certain tow dollies classified as extensions of the lead trailer rather than separate vehicles.
No out-of-state license, permit, or endorsement overrides a state’s ban. Some states treat the violation as a moving violation that goes on your driving record.
Length and Weight Limits
Every state that allows triple towing caps the total length of the combination, measured from the front bumper of the tow vehicle to the rear of the last trailer. Most set the ceiling between 60 and 75 feet, with 65 feet the most common limit. That doesn’t leave much room once you add a full-size truck, a fifth-wheel camper, and a boat trailer.
Weight is where more drivers run into trouble. Your tow vehicle has a Gross Combined Weight Rating assigned by the manufacturer, printed on the door jamb sticker and in the owner’s manual. It represents the maximum total mass of the vehicle, passengers, cargo, and everything being towed. Exceeding it degrades braking performance and stresses the drivetrain.
States also enforce axle weight limits to protect road surfaces and bridges. A rig within the vehicle’s GCWR can still exceed an axle limit if tongue weight is distributed poorly. Weigh stations along interstates actively check these numbers, and overweight violations carry steeper penalties than length infractions. Running your full combination across a truck scale before you leave is cheap insurance.
Hitch, Brake, and Lighting Requirements
Hitch Types
Many states that permit triple towing either require or strongly favor a fifth-wheel or gooseneck hitch for the lead trailer. These hitches mount in the bed of a pickup directly over the rear axle, creating a far more stable pivot point than a bumper-mounted ball hitch. The result is less sway, better weight distribution, and a more controlled ride at highway speed.
The connection between the first and second trailers typically uses a standard ball hitch, since the second trailer is usually a lighter unit like a boat or utility trailer. Some states prohibit configurations where both trailers connect via standard bumper hitches, because that arrangement amplifies sway in the rear trailer. A fifth wheel up front with a boat trailer behind it works with the physics. Two bumper-pulls in a chain works against them.
Brakes and Safety Chains
Both trailers in a triple-tow configuration need independent braking systems. Specifics vary, but the common pattern is that any trailer over 1,500 to 3,000 pounds gross weight must have its own brakes. Nevada exempts trailers under 1,500 pounds but mandates brakes on all wheels for heavier units manufactured after 1975. The trailer brakes must synchronize with the tow vehicle so the trailers don’t push the truck forward during a hard stop.
Federal regulations under 49 CFR 393.70 require at least two safety chains on any towed vehicle, crossed under the coupler to cradle the hitch tongue if it separates. The combined strength of the chains must exceed the gross weight of the trailer, and they must attach to the frame of the towing unit rather than the bumper.
Trailers with electric brakes weighing over 3,000 pounds also need a breakaway switch, which applies the trailer’s brakes automatically if it separates from the tow vehicle. The breakaway battery must hold enough charge to keep the brakes engaged for at least 15 minutes.
Lighting
The rear-most trailer needs fully functional tail lights, turn signals, brake lights, and reflectors. A burned-out bulb on the back of a 60-foot combination is an invitation for a rear-end collision at night and a negligence claim afterward.
License and Permit Rules
Most states that allow triple towing let you do it on a standard driver’s license, provided you stay within certain weight thresholds. Cross those thresholds and you’ll need an upgraded license or endorsement, and the thresholds themselves differ by state.
California sits at the extreme end. Any pickup or RV towing two trailers requires a Commercial Class A license with the proper endorsement, which involves a written knowledge test, a behind-the-wheel skills test with the actual configuration, and ongoing medical certification. Most recreational drivers don’t anticipate that.
Some states require a separate permit for multiple-trailer operations even when you meet the licensing thresholds. These permits may restrict which roads you can use or what hours you can operate. Costs are generally modest. The real cost of not having one is getting ordered off the road mid-trip.
Reciprocity is the hidden trap on multi-state trips. Your home state’s endorsement or permit has no legal force in a state that bans triple towing entirely. And a configuration that needs only a standard license in Texas might require a special endorsement in another state with a lower weight cutoff. Check every state on your route, not just your destination.
Insurance Coverage Gaps
Standard auto insurance policies generally extend liability coverage to a trailer being towed by the insured vehicle. The catch is that most policies contemplate one trailer, not two. A second trailer in the chain may fall outside the scope of your coverage, and if you cause an accident while running a configuration your policy doesn’t explicitly cover, the insurer has grounds to deny the claim. That leaves you personally liable for injuries and property damage.
Travel trailer insurance purchased separately typically does not include its own liability coverage; the liability piece relies on the tow vehicle’s policy, which brings you back to the same problem. Before hooking up a second trailer, call your insurance company and get written confirmation that your specific configuration is covered. A verbal “you should be fine” from an agent is worth nothing when a claims adjuster gets involved after a wreck.
Passengers in Towed Trailers
Riding inside a towed trailer on a public highway is illegal in 34 states, which covers most of the country. The prohibition applies to travel trailers, popup campers, and in most of those states, fifth wheels as well. Eight states that ban passengers in travel trailers carve out an exception for fifth wheels, typically requiring a functioning entry door, emergency exit, and a way to communicate with the driver.
The 16 states without an explicit ban aren’t endorsing the practice. If an accident happens while passengers are riding in a towed unit, the liability exposure is enormous regardless of whether a specific statute was violated. For any triple-tow configuration, keep all passengers in the tow vehicle.
Planning a Multi-State Route
Your legal options shrink as you move east. A driver leaving Colorado with a fifth wheel and a boat trailer has a clear path through most of the western and midwestern states, then runs into a wall of prohibitions near the East Coast. Maryland is the only potential eastern corridor, and its non-commercial provisions are unclear enough to be risky.
Before any trip, map every state on your route and verify three things for each one: whether triple towing is allowed, whether your combination meets the length and weight caps, and whether your license satisfies that state’s requirements. A configuration that is legal in every state except the one you spend 45 minutes crossing on an interstate can still earn you a citation and a forced roadside disconnect.
Drivers who need to reach eastern destinations with two trailers typically pick between two options: drop one trailer at a storage facility before entering a restrictive state, or ship the second unit separately. Neither is convenient. Both are cheaper than a towing violation, an impound fee, and an accident claim in a state where your configuration was illegal to begin with.