For All State Regulations, See:
One-half hour before sunrise to one-half hour after sunset, including Saturday and Sunday. Loads not exceeding 10′ wide, legal height (14′) or 100′ long with legal front and rear overhang may travel at night on Interstate system only. Overweight only may have continuous movement. City/county curfew times are listed on permit. Travel allowed on major holidays depending on dimensions.
In Texas, signs are required only on escort vehicles.
Red or fluorescent orange flags, 12" square required at all extremities of the load.
No lighting requirements are mentioned for haul vehicles. Escort vehicles may require warning lights.
Dimensions: Width: 8' 6" Height: 14' Semi-trailer of 2 vehicle combo: 59' Two-vehicle combo: 65'