How many safety chains or cables are required for towed vehicles when being coupled to the towing vehicle?

When towing a vehicle, two safety chains or cables are required to ensure a secure and stable connection between the towed vehicle and the towing vehicle. This requirement is crucial for safety, as it provides a backup connection should the primary hitch fail. If the main coupling fails, the two safety chains or cables can prevent the towed vehicle from becoming completely detached and reduce the risk of accidents on the road.

The use of two safety devices enhances stability because it allows for some level of movement between the towing and towed vehicles while still keeping them safely connected. In addition, if one chain or cable were to break, the other would still hold the vehicle in place, thereby reducing the overall risk for both the operator and other road users.

In summary, using two safety chains or cables is an essential safety measure that is mandated to ensure safe towing practices, reflecting the importance of redundancy in safety equipment.