Connecticut trailer laws and regulations

Connecticut at a glance:

Connecticut is one of the stricter states on lighting. Plan for that before crossing the border.

Brake threshold

Trailers with a gross weight of 3,000 lb or more must have brakes on all wheels, per CGS 14-81. The brakes must hold the trailer when parked and stop it when towed. A breakaway system is required so the trailer brakes apply automatically if the trailer disconnects.

For trailers over 8,000 lb, the towing vehicle must have brake controls that can be operated by both hand and foot. In practice that means a proportional electric brake controller with a manual lever (most modern controllers from Tekonsha, Redarc, or Curt cover this).

Registration

Personal-use trailers (boat trailers, snowmobile haulers, utility, campers) register under the camp trailer category at Connecticut DMV. You’ll need:

• Connecticut title or out-of-state title to transfer
• Bill of sale, even for a private used purchase
• Proof of insurance on the tow vehicle
• VIN inspection if out-of-state or homemade

Trailers do not require their own liability insurance unless used commercially or financed. The tow vehicle’s policy extends to the trailer for liability while attached.

Dimensions

Combined length of 60 feet is on the shorter side compared to Western states. A 22-foot pickup can pull a 38-foot fifth wheel and still squeak in.

Width of 102 inches matches most travel trailers and toy haulers. The 13 ft 6 in height limit is the typical East Coast number; watch the Merritt Parkway and other CT parkways, which prohibit commercial vehicles and have lower clearance bridges. Trailers and tow vehicles are barred from the Merritt and Wilbur Cross Parkways.

Lighting (the strict part)

Minimum for every trailer:

• At least two red tail lamps visible from 1,000 feet
• At least two red rear reflectors
• At least two red stop lamps
• Functional turn signals
• License plate light

For trailers over 80 inches wide, add:

• Two front clearance lamps (amber)
• Two rear clearance lamps (red)
• Three identification lamps at the rear, mounted close together near the vertical centerline
• Two side marker lamps each side: one front, one rear

For trailers over 30 feet long, add an amber side marker lamp on each side near the middle of the trailer.

That’s a lot of bulbs to keep working. Trailers sold in CT and most boat / RV trailers ship pre-wired. Inspect them at every hitch-up; ground straps corrode and bulbs burn out, especially after winter.

If you tow with a Ford built 2021 or later (F-150, F-Series Super Duty 2022+, Ranger 2024+, Expedition 2022+, Maverick 2022+, Transit 2026, or Lincoln Navigator), check whether Ford recall 26C10 / NHTSA 26V104000 applies. The recall covers an Integrated Trailer Module software fault affecting trailer lights and brakes on roughly 4.3 million vehicles. OTA fix pushed March 2026. A trailer light failure caused by the recall is still a citation in Connecticut; fix the truck.

Hitches and safety chains

CGS requires camp trailers to be coupled to the towing vehicle’s frame using a safety device (chains or cables) in addition to the hitch coupler. No specific class requirement, but the hitch must match the trailer’s weight rating.

Two chains, crossed under the tongue, each rated at or above 50 percent of the trailer GVWR. That’s industry standard and Connecticut enforcement will accept it.

Mirrors

Both outside mirrors must show the highway directly behind the towing vehicle on a line parallel to the vehicle. CT does not specify a distance, but the practical standard is the same 200 feet other states use.

If your trailer is wider than your tow vehicle, install extended mirrors. Clip-ons or telescoping factory tow mirrors are the common solutions.

Speed and where you can drive

Posted speed limits apply. CT has no separate towing speed cap.

Important restriction: trailers and combinations over the parkway weight/length limits are banned from the Merritt Parkway (Route 15), Wilbur Cross Parkway, and parts of the Bissell Bridge and Putnam Bridge area. Plan routes via I-95, I-84, I-91, and US-7 instead. Truck routes are clearly signed; honor them.

What gets cited

Connecticut state police and local PD write trailer citations most often for:

• Burned-out tail or brake lights
• Missing or worn safety chains
• No breakaway battery on 3,000+ lb trailers
• Inadequate mirrors on wide combinations
• Trailers on the parkway system

The state takes lighting violations seriously. If you’re crossing into CT, walk around your rig and verify every bulb works before you pull out.