V C Section 21715 Passenger Vehicle Combinations Number and Weight Limits
Passenger Vehicle Combinations: Number and Weight Limits
21715. (a) No passenger vehicle regardless of weight, or any other motor vehicle under 4,000 pounds unladen, shall draw or tow more than one vehicle in combination, except that an auxiliary dolly or tow dolly may be used with the towed vehicle.
(b) No motor vehicle under 4,000 pounds unladen shall tow any vehicle weighing 6,000 pounds or more gross.