A vehicle is in overweight violation when its actual loaded weight exceeds a legal weight limit.

"Actual loaded weight" means the truck, trailer, cargo, fuel, and anything else being carried at the time of travel. "Legal weight limit" can mean the truck's gross vehicle weight, an axle limit, or a bridge-formula limit set by statute, regulation, or permit. In Connecticut, weight limits are governed primarily by Conn. Gen. Stat. § 14-267, with enforcement handled through state permitting and commercial vehicle regulation. A truck may be overweight even if its total weight seems acceptable, because one axle or axle group carries too much of the load. A special permit can authorize heavier movement in some situations; without a valid permit, exceeding the limit is a violation.

In a crash claim, an overweight violation can matter because excess weight increases stopping distance, tire stress, rollover risk, and the force of impact. It may support allegations of negligence, negligence per se, poor loading, or unsafe dispatching, especially if weigh-station records, bills of lading, onboard data, or permit files show the truck should not have been on the road at that weight.

For Connecticut injury cases, proof of an overweight violation can strengthen liability arguments and increase the value of claimed damages, including non-economic damages. Connecticut does not impose a general cap on non-economic damages in personal injury or motor vehicle cases.